Mingus Ah Um

Recording history and tape provenance

Mingus Ah Um was recorded across two sessions at Columbia's 30th Street Studio in New York City: May 5, 1959 (tracks A1, B1–B4) and May 12, 1959 (tracks A2–A5). Produced by Teo Macero, engineered by Fred Plaut, and released in October 1959. Personnel: Charles Mingus (bass), Booker Ervin (tenor sax), John Handy (alto sax, tenor sax, clarinet), Shafi Hadi – born Curtis Porter (alto sax, tenor sax), Willie Dennis (trombone), Jimmy Knepper (trombone), Horace Parlan (piano), Dannie Richmond (drums). The S. Neil Fujita abstract painting on the cover, like his design for Kind of Blue, has become inseparable from the record.

The sessions took place in Columbia's 30th Street Studio – the same converted Presbyterian church with a 100-foot ceiling and stone walls that Miles Davis used for Kind of Blue just two weeks earlier, and that shares engineer Fred Plaut with that session. Plaut and Macero captured Mingus's ensemble in the full acoustic bloom of that room: horns wide and natural, Dannie Richmond's drums thundering in the space, Mingus's bass anchoring everything with visceral physical presence. The Skeptical Audiophile: "If you like Kind of Blue, here's another album with that sound – same year, same studio, same engineer."

The edit problem: the mono original and the stereo unedited

This is the defining content issue for Mingus Ah Um and it is distinct from anything encountered in the other guides in this series. The original 1959 mono LP (CL 1370) was an edited version of the recording – six of the nine tracks were shortened, sometimes by several minutes, to fit the album onto one LP side. This was not Mingus's artistic decision but Columbia's commercial one: Mingus was reportedly furious. The edits were partly motivated by Jimmy Knepper's explanation that Mingus wanted different tunes to accrue royalties rather than extended solos – a complex, contested claim.

The original stereo LP (CS 8171) was issued simultaneously with the same edited tracks. There is no unedited mono LP from 1959. Unedited versions were first released on LP in 1979 as Columbia KC 32210, mixed from the three-track tapes. The 1987 Columbia Jazz Masterpieces CD edition (CJ 40648) actually reverted to the original edited versions – the full-length tracks did not reach wide availability until the 1990s. All modern vinyl reissues (Classic Records, MOV, ORG, MoFi) present the full unedited versions.

This creates an unusual split:

• Vintage Six Eye originals (mono CL 1370 or stereo CS 8171): Edited tracks. Historically significant, sonically stunning from 30th Street tubes and Scully/Westrex lathes – but you are hearing a shorter, sometimes significantly shorter, version of the music.
• All modern vinyl reissues (from the 1990s onward): Full, unedited tracks from the three-track session tapes. Stereo only – there is no unedited mono mix on vinyl.

LondonJazzCollector: "You will be short-changed musically compared with The Evil Silver Disk. When Columbia first issued the album in 1959, six of the album's nine songs were edited in order to fit them on the LP, shortened by several minutes." Jazzwise: "Six tracks of the original mono release were edited down. That original mono LP was also released in stereo, whereas this stereo is the posthumous reissue including not only all the unedited tracks but three extra items unreleased until 1979."

The choice is therefore not simply about sonics but about musical content. Most collectors choose to own at least one of each: an original Six Eye for the authentic 1959 tube sound, and a modern reissue for the complete music.

The Columbia Six Eye label: identification

Columbia's "Six Eye" label (named for the six circles arranged symmetrically around the spindle hole on the label design) ran from approximately 1955 to 1962. It is the first-pressing standard for virtually all Columbia jazz from this period, including Kind of Blue, Time Out, and Mingus Ah Um.

Original catalogue numbers: - Mono: CL 1370 – matrix codes XLP 47456 (Side A) / XLP 47457 (Side B); mastered on Scully lathes with Westrex cutterheads - Stereo: CS 8171 – matrix codes XSM 47458 (Side A) / XSM 47459 (Side B); mastered on Scully lathes with Westrex cutterheads

Six Eye label characteristics: Red label with black lettering. Six eyes (small circles) arranged around the spindle hole. "COLUMBIA" in arc at top. "GUARANTEED HIGH FIDELITY" (mono) or "STEREO FIDELITY" (stereo) printed on the label. Note: the "360 Sound Stereo" text only appears on the later two-eye label era (from approximately 1962); a genuine six-eye stereo CS 8171 says "STEREO FIDELITY," not "360 Sound Stereo." No barcode.

First pressing markers: Machine-stamped matrix numbers in the deadwax – this is the key identifier. Hand-etched matrices appear on later pressings and represses. The stereo first pressing features a deep groove ridge running around the perimeter of the red inner label – this is a dead-certain first-press identifier for the stereo CS 8171. The rear cover of very early stereo copies features a bold "3" printed in the bottom right corner of the jacket. LJC's Columbia label guide: first-generation pressings used Scully lathes with Westrex cutterheads, which were replaced by Neumann cutterheads post-1972 – this hardware change is audible and materially affects the sound of later Columbia represses.

Sonic character of the originals: LJC on his CL 1370 mono 1B/1E stamper copy: "Put on the Six Eye and suddenly the room explodes, that soundstage opens up, fills the room. Whoa!! That's Mingus Ah Um!!" The Skeptical Audiophile: "The rich, sweet, spacious sound of the vintage tubes used to record the session is reproduced faithfully here – without that sound, it would just not be Ah Um." Better Records / Tom Port community rates outstanding six-eye stereo copies as "Double Plus (A++)" – "BIG and BOLD... a huge soundfield, with the music positively jumping out of the speakers."

Market values (NM condition): - NM mono CL 1370 Six Eye (machine-stamped) is comparable to or somewhat below the stereo deep-groove pressing in typical pricing; exceptional copies with the earliest 1B/1E stampers or white label promos command considerably more than either - NM stereo CS 8171 Six Eye with deep groove sits a step above the standard mono, reflecting its own collector demand - Non-deep-groove stereo CS 8171, still Six Eye era, is more affordable than either deep-groove variant

UK Philips pressing: The UK first press appeared on Philips (cat. BBL 7340 mono / SBBL 507 stereo). LJC's assessment: "When you put on the Philips, it's all a bit tame and withholding, dull and worthy... Stick on the Six Eye and suddenly the room explodes." The UK pressing is significantly inferior to the US original and is not recommended as a collector target for sonic reasons.

The original two-track vs three-track tape situation

Columbia recorded sessions in this period to three-track tape (L/C/R). The original 1959 stereo LP (CS 8171) was mixed and cut from a stereo mix-down of these three-track tapes; the mono LP (CL 1370) was a fold-down of that stereo mix derived from the three-track master. The three-track tape itself remained in the vault.

Beginning in the late 1970s, engineers mixed down the three-track tapes to new stereo mixes incorporating the previously edited-out portions. The Music on Vinyl 2010 sticker documents the stated source as: "Original & Unedited Versions – Mixed from the original three-track tapes on an original Presto tube tape recorder." This claim appears on the MOV product itself. However, the technical community has questioned whether a Presto machine – typically a mono or two-track recorder – could actually play back a three-track tape; the three-track transport would require a specialised Ampex 300-3 or 350-3 deck. Whether MOV's sticker accurately describes the hardware used or is a simplified marketing description of an analog chain is unresolved. Sony's standard protocol for licensing to European reissue labels like MOV typically involves supplying digital transfers, which would explain why the Discogs community rates the mastering source as uncertain. Classic Records (1995) drew directly from the three-track session tapes independently in an entirely separate mastering session with Bernie Grundman, predating any Sony/Legacy archival campaign. The ORG and MoFi reissues draw from the master tape lineage as it existed at the time of their respective mastering sessions. All are stereo. All include the full-length tracks.

The reissue hierarchy

Classic Records 180g/200g 33⅓ (1995–2000s) – the first great reissue

Cat. CS 8171 (Discogs r11547530 for 180g; r1981568 for 200g Quiex SV-P). Classic Records issued the stereo edition only, using Columbia's CS 8171 label number. Mastered by Bernie Grundman, AAA. Pressed at RTI (US). 180g first pressings from mid-late 1990s; 200g Quiex SV-P repress from the later 2000s. Single LP, 33⅓, stereo. Label: red Classic Records with Columbia artwork.

The Classic Records pressing was the first audiophile vinyl reissue of Mingus Ah Um and established Grundman's approach to this material. The 180g version is identified by a small pressing ring near the spindle; the 200g Quiex SV-P has a large ring near the rim. Both are stereo/unedited. Discogs owner: "This is a wonderful reissue of the album. Grundman outdoes himself too many times to count. I have no original to compare with but I'm almost certain this is as good or better. It sports some fantastic resolution and clarity for all instruments, with the exception of bass. The horns and drums just melt in your ears." Out of print and now collectible, with the 200g Quiex SV-P commanding a real premium over the standard 180g.

Music on Vinyl 180g 33⅓ (2010–present) – the widely available budget reference

Cat. MOVLP065 | Barcode: 886976648718 (Discogs r2447595). Format: single 180g LP, 33⅓, stereo, gatefold. Distributed by Sony Music/Legacy. EU manufacture. Contains full, unedited tracks from the three-track session tapes mixed on original Presto tube recorder.

The MOV is controversial on the question of whether it was mastered digitally or from an analog source – "Word on the street is that it's a digital cut" (Discogs). Despite this uncertainty, it consistently earns strong community praise for its pressing quality (Discogs): "Amazing sound for the price. Dead quiet and dynamic. For me, this is plenty good and no need to track down a MoFi." Another: "Whoa. No need for another pressing. This is an excellent mastering and pressing job by MOV. Excellent clarity, the brass instruments has plenty of bite." A third: "This MOV is definitely a bargain for the €22 I paid for it. Warm, organic, rhythmic, and not digital at all. Great dynamics, ultra-quiet vinyl."

One owner who compared MOV against the MoFi One-Step directly: "They have more grip and texture than the MoFi OneStep which I also own. I'm not saying it's better than the OneStep, but I would need to spend more time doing critical listening to decide my preference." The sleeve art is "slightly unsharp reproduction of the original" per the Discogs description. A repressed version from 2015 exists with slightly different sticker text; still in print and readily available.

A 2021 limited-edition variant on blue and white marble vinyl was issued by MOV as cat. MOVLP515 (also labelled Columbia KC 32210) – this is a collector edition and not necessarily a sonic upgrade.

ORG (Original Recordings Group) 45rpm 2LP (2012) – the analog reference

Cat. ORG 130 | Secondary Columbia label cat#: 88691954551 (Discogs r4143037) | Format: 2×180g 45rpm, numbered limited edition, 2,500 copies, laminated gatefold. Mastered by Bernie Grundman, AAA, from the original analog master tapes. Pressed at RTI (US). Matrix etching: "ORG 130-A45 20400.1(3) Bernie Grundman" / "ORG 130-B45 20400.2(3) Bernie Grundman" etc. Stereo, unedited.

The ORG is the pure-analog community benchmark for this album – unambiguously AAA, Grundman, RTI, 45rpm. Vinyl Gourmet's 9/10 sound rating. Vinyl Gourmet review: "You'll suddenly find your room filled with the ghosts of Mingus, Parlan, Ervin and his peers... This double LP cut at 45rpm comes housed in a lovely thick and solid gatefold cover with faithful artwork reproduction." The 45rpm groove width relative to the Classic Records 33rpm allowed Grundman to resolve Mingus's bass significantly better: "One thing that is really improved is that you can really hear and feel Mingus playing with so much more resolution and focus because the bass now sounds like there are bass strings being played, it's not all over the room with 'boomy' effect." Multiple Discogs owners: "This is by far the best I've heard this album and I've heard many versions." "Stands very well against the MoFi Ultradisc."

Strictly limited to 2,500 copies; out of print. Commands a substantial premium on the secondary market well above its original launch price, for anyone who didn't buy in at release.

Mobile Fidelity UltraDisc One-Step 2×45rpm (2020) – the pressing pinnacle with provenance caveat

Cat. UD1S 2-010 | Label also: Columbia 88985439221. Discogs r14857369. Format: 2×180g SuperVinyl 45rpm, deluxe numbered box set, 6,000 copies, two Don Hunstein photo glossies, foil-stamped jackets. Pressed at RTI on MoFi SuperVinyl (NEOTECH/RTI compound). Mastered and lacquer cut by Krieg Wunderlich at Mobile Fidelity Sound Lab, assisted by Shawn R. Britton.

Critical provenance caveat – MoFi-gate applies here: The Discogs matrix confirms: "1/4" / 15 IPS analog master to DSD 256" – meaning the mastering chain was: original analog tape → DSD 256 digital intermediate → analog console → lacquer. This is precisely the process exposed in the 2022 MoFi-gate controversy. The UD1S One-Step format's DSD intermediate is confirmed and documented on the label; Wunderlich's mastering credentials are not in question, but this is not a fully analog chain.

Despite this, community reception has been broadly positive (Discogs): "Mingus Ah Um has always sounded good. This version, though, sounds substantially better than the other versions. In fact, this is one of the best-sounding classic jazz albums I own, with a big, deep soundstage, visceral images, and tons of impact. It's nearly perfect." Discogs master page: "A little top-heavy at times, but overall a really solid edition. Would choose this over any subsequent reissues except maybe the MoFi one-step." Another Discogs owner who also has the MOV: "They have more grip and texture than the MoFi OneStep... I'm not saying it's better than the OneStep."

One dissenting voice from a Discogs owner comparing carefully: "sounds real good and dead silent but my brand new sealed copy is quite warped while it does not affect play... and then of course, the 'all analogue' lies which leaves a bad taste in the mouth." The warp issue has been reported across multiple sealed copies, a known QC concern with this release.

For collectors informed by the MoFi-gate context: the UD1S here occupies the same tier as the Kind of Blue MoFi – sonically impressive but carrying a provenance asterisk. Market value has settled down meaningfully from pre-2022 peaks.

Mono vs. stereo

This is one of the more cleanly resolved questions in the guide series, but requires context:

Original vintage pressings (1959): The mono CL 1370 is broadly considered the listening-preferred format among purists – as on other Columbia jazz of this period, the mono mix was the primary artistic document, engineered with Columbia's tube equipment for direct listening rather than for the wide-channel staging of stereo. LJC's strong mono preference reflects the usual pattern. However, the mono is edited – if you want to hear full "Fables of Faubus" or extended "Better Git It in Your Soul," the mono original does not give you that.

Modern reissues: All are stereo-only, using the three-track mix-down that includes the complete performances. There is no unedited mono vinyl reissue. The MoFi SACD exists with stereo as the primary format.

The practical conclusion: vintage mono for the 1959 listening experience; modern stereo reissue for the complete music. These are different albums in meaningful ways. Serious Mingus collectors own both.

What makes this recording particularly demanding on pressings

Mingus's bass is the defining challenge. In the 30th Street Studio's vast acoustic space, Mingus's upright bass had enormous natural resonance – it can sound boomy and diffuse on lesser pressings, or focused, physical, and string-textured on the best. The ORG 45rpm is specifically praised for solving this: the wider groove of 45rpm resolved "bass strings being played" rather than "boomy effect." The Better Records community grades pressings partly on whether the bass "sits in the mix" versus "taking over the room."

The brass ensemble – two trombones and three saxophones trading lines – requires good high-frequency resolution and correct inter-instrument separation. On flat or compressed pressings these voices blur; on the best (original Six Eyes, Classic Records, ORG, MoFi UD1S) they maintain individual identity even in the densest passages. Worth knowing: a four-way direct comparison (original Six Eye, ORG, Music on Vinyl, MoFi UD1S) found a faint distortion on the saxophone's opening moments of "Goodbye Pork Pie Hat" (right channel) present on the ORG, the MoFi One-Step, and even the label's own high-resolution digital transfer – but not clearly audible on the original pressing. This points to the artifact being introduced somewhere in the later three-track mixdown/tape-transfer chain used for the unedited versions, rather than being a defect specific to any single reissue.

Dannie Richmond's drums in the church acoustic need correct reverb tail – not clipped, not muddy, just live-in-a-space. Fred Plaut captured this beautifully; good pressings reproduce it; poor ones either truncate the room ambience or smear it.

Pressings to avoid

Grey-market EU editions (DOL, Waxtime, JazzWax Records, Not Now, Vinyl Passion): Mingus Ah Um is one of the most bootlegged jazz titles in the EU budget market. DOL's version is documented on Discogs as "sounds more like a CD than vinyl – very clean sounding pressing" from a digital source. JazzWax 2009 similarly: "clean sounding but digital quality to it." One Discogs reviewer: "these European labels are working within a grey market and they don't pay licensing fees, hence they've stolen the music." Avoid.

1970s–80s Columbia represses: Post-Westrex/Scully era (post-1972 especially), these use Neumann cutterheads on Scully lathes and sound noticeably thinner and brighter. The 1971 Columbia repress has mixed reviews: "top-end heavy pressing with hardly any bass to fill it out... Mingus' bass gets lost in busier passages." Acceptable for casual listening given how cheap they are; not recommended for serious listening when MOV exists.

1987 digital remaster (CJ 40648): Columbia Jazz Masterpieces series, Vlado Meller mastering, "GI" Carrollton GA plant. Early CD-era mastering, digitally sourced. Identifiable by "Digital Master Prepared by Teo Macero" and "Mastered by Vlado Meller" credits.

Buyer's guide by budget

$ (Budget): The Music on Vinyl MOVLP065 is the answer. Dead-quiet 180g pressing, full unedited tracks, widely available. Its provenance is debated (possible digital cut) but the sonic results have won over most listeners. This is genuinely excellent for the price.

$$$$ (Premium): The Classic Records 180g or 200g on the used market gives you a confirmed-analog Grundman mastering at 33⅓ in excellent packaging. The 200g Quiex SV-P is particularly prized. Also in this range: a clean Columbia Six Eye CS 8171 stereo (non-deep-groove) – edited tracks but with genuine 1959 tube energy that no modern reissue fully matches.

$$$$$ (Grail / Rare): The MoFi UD1S 2-010 delivers the best pressing quality currently available – SuperVinyl, RTI, 45rpm, Wunderlich lacquers. The DSD intermediate proviso applies but the sonic results are not in dispute. Also in this range: a NM deep-groove Six Eye CS 8171 stereo (edited but tube-authentic) or a genuine NM Six Eye mono CL 1370.

$$$$$ (Grail / Rare): The ORG 130 on the secondary market is the pure AAA benchmark – Grundman, RTI, 45rpm, 2,500 copies. This is what audiophile conviction sounds like. If you find one at a fair price, buy it.

For most listeners, the Music on Vinyl MOVLP065 fills most of the musical and sonic need for a modest outlay. For the dedicated step-up, the MoFi UD1S (accepting its provenance) or the ORG 130 (accepting secondary-market pricing) are the completists' answers. For vintage character and the 1959 studio sound in edited form, a NM Six Eye stereo CS 8171 with deep groove.

Pressing tier summary

References

• Discogs (master): https://www.discogs.com/master/65014-Charles-Mingus-Mingus-Ah-Um
• YouTube, True Audiofiles, "SOUND QUALITY SHOOTOUT! Mingus Ah Um": https://www.youtube.com/watch?v=wgZnQfoKV20
• Wikipedia, "Mingus Ah Um": https://en.wikipedia.org/wiki/Mingus_Ah_Um
• LondonJazzCollector, "Charles Mingus: Ah Um (1959) Columbia Six-Eye": https://londonjazzcollector.wordpress.com/2013/02/12/charles-mingus-ah-um-1959-columbia-six-eye/
• LondonJazzCollector, "Columbia US Labels": https://londonjazzcollector.wordpress.com/record-labels-guide/columbia-records/columbia-us-labels/
• The Skeptical Audiophile, "Charles Mingus, Ah Um": https://ontherecord.co/2023/01/29/charles-mingus-ah-um/
• Better Records, Tom Port, "Mingus Ah Um": https://www.betterrecords.com/mingus-ah-um
• Jazzwise, "Charles Mingus: Mingus Ah Um: The Stereo and Mono Versions": https://www.jazzwise.com/reviews/charles-mingus-mingus-ah-um-the-stereo-and-mono-versions
• Vinyl Gourmet, review of the ORG 130 45rpm 2LP: https://blog.vinylgourmet.com/2014/02/charles-mingus-mingus-ah-um-org-original-recordings-group-vinyl-lp-record-review.html
• Stereophile, "Revinylization #8: Charles Mingus: Mingus Ah Um": https://www.stereophile.com/content/revinylization-8-charles-mingus-mingus-ah-um
• Discogs release and community listings for all pressings referenced in the tier table above (original CL 1370/CS 8171 Six Eye, Classic Records 180g and 200g, Music on Vinyl MOVLP065, ORG 130, MoFi UD1S 2-010, Columbia represses, UK Philips, 1987 Columbia Jazz Masterpieces)

Related guides: Blues & Roots · The Black Saint and the Sinner Lady · Kind of Blue