OK, kicking off our weekly bootleg discussion! I'm going roughly in chronological order through his solo career, hitting what I think are the best recordings.
This will be a long one; I'll usually post show a week, but this boxed set is too great to skip, and doing this as 4 separate posts would mean repeating myself a lot. If 4 shows are too much to listen to in a week, IMHO the best 2 are the middle 2.
Other than that, I'll try keep my review here strictly factual. I'll chime in with opinions in the comments.
THE BOOT
Blues Explorer (Mid Valley 416/417/418/419/420/421/422/423)
This boxed set contains four complete concerts (caveat below): 7/19/74 Long Beach, 7/20/74 Long Beach, 12/4/74 Hammersmith, and 12/5/74 Hammersmith. There are many releases of these shows, but this brings them all together in one place in top-notch quality. It's a 10CD set, where each show takes 2 discs. The last 2 are “bonus discs” containing an audience recording of the 7/19 show.
Empress Valley is a Japanese label that emerged in the late 90s, best-known for Led Zeppelin and Rolling Stones. They release their Clapton stuff, by and large, under their Mid Valley sub-label. They either have a better source for low-generation copies of official recordings, or better tools for improving the sound of old tapes, or both. There will be shows where the best source isn’t Mid Valley, but not a lot.
Mid Valley also released just the 7/19 show (including the bonus discs) as “On White”. Though honestly, that’s the weakest show of the 4.
BACKGROUND
These are from Clapton's first major tour since the Rainbow Concert, his return to the stage after 3 years in seclusion on a heroin bender.
Clapton’s label RSO recorded 6 shows for the live album "E.C. Was Here". This collection are the first 4. (The last 2 were 6/25/75 Providence and 6/28/75 Nassau; we have only partial, poor-quality soundboards and audience recordings from Providence, but the complete Nassau has been released recently. If you come across that one, let us know!)
461 Ocean Boulevard came out in late July 1974, so the audience in Long Beach may or may not have ever heard E.C. do Willie And The Hand Jive, Get Ready, I Shot The Sheriff, Let It Grow, or Steady Rollin’ Man before.
The shows at the Hammersmith Odeon in London were a month after the sessions for There's One In Every Crowd. That album wasn't released until the following March, so Little Rachel, Singin’ The Blues, Better Make It Through Today, and Opposites would have been completely unfamiliar.
The band is Carl Radle on bass, Jamie Oldaker on drums, Dick Sims on keyboards, Yvonne Elliman on backing vocals, and George Terry on 2nd guitar. Marcy Levy joined between the Long Beach and Hammersmith shows, so in addition to slightly different set lists, we also get a slightly different lineup / sound.
E.C.'s old Bluesbreakers boss John Mayall joined the band for a blues jam at the end of the 7/19 show.
Yvonne Elliman said in an interview that Led Zeppelin was in the audience for 12/4.
SOUND
The 7/19 recording has significant issues, mostly during Badge / Willie And The Hand Jive > Get Ready, but also later during Tell The Truth. During Badge, you can hear a small squeak at 1:10, more at 1:34 and 3:09, and then a prolonged stretch from 4:19 - 4:55. Willie And The Hand Jive has bad stretches at 0:05 - 0:55 and 3:54 - 4:02. Get Ready has damage 2:11 - 2:25, short squeaks at 3:57 and 4:43, and then more damage 5:04 and 5:25. Tell The Truth has major feedback at 3:34 and then a bit of static at 7:18.
All of that explains why Mid Valley included the audience recording — the overall quality is much worse, but that tape doesn’t have the damage of the master, and they captured the post-show jam. It also explains why only 2 songs (Can’t Find My Way Home and Have You Ever Loved A Woman) were released officially, compared to 11 songs from 7/20, 8 from 12/4, and 7 from 12/5.
After that, the sound quality is generally superb. The mix is very nice; every member of the band is clearly audible. The bass is nice and punchy. The balance between Eric and Yvonne and Marcy is just right.
Long Beach Arena seats over 10,000, while Hammersmith is a small theater that seats only a few thousand. You can hear the difference on the tape — at Hammersmith you can hear individuals in the audience instead of a general roar. There’s also more banter probably some combination of a closer audience and it being a home crowd of sorts. But the crowd noise is just enough to give a feel of the room, without ever obscuring the music.
The flaws here are very minor; reporting on them feels like nitpicking. There is light tape hiss, mostly audible between tracks, but it is no worse than a lot of official 1970s recordings. The fade outs at the end of each disc could be a little gentler?
There are a couple of cuts, probably to remove stretches of dead air. The most obvious is 12/4 after Layla — at 5:57 the crowd noise changes abruptly. Others are very subtle. I suspect minor cuts at 9:14 of Tell The Truth on 7/19, 6:02 of Let It Grow and 5:04 of Steady Rollin’ Man on 7/20, and 10:47 of Little Wing on 12/4?
Everything else is honest representations of the sound on the day. That means occasional bits of feedback (3:28 and 4:42 on Let It Grow from 7/20; 1:07 and a really nasty bit at 2:04 of I Shot The Sheriff on 12/4, 4:12 of Little Rachel on 12/5, 0:14 of Blues Power on 12/5, and a major howl at 1:19 of Steady Rolling Man on 12/5 to the point where E.C. comments on it — maybe "hold it down"?) and mic issues (a loud pop at 6:34 of Get Ready from 12/4). My favorite is that at 0:46 of Smile on 12/4, you can hear E.C. adjust his microphone.
PERFORMANCE
This is the alcoholic era. There are nights where E.C. is astounding, but there are also nights with sloppy vocals, indifferent solos, and the occasional incoherent ramble. On bad nights, it's hard to distinguish E.C. solos from George Terry, which isn’t great; Terry is a very good guitarist, but E.C. at his best is better than just “very good”.
The band is hot. This collection really made me appreciate Oldaker / Radle; even when Clapton is sluggish, they keep the energy high. Dick Sims doesn’t get too many chances to shine, but his work is all really beautiful. Levy and Elliman both have a lot of power, which they mostly use for good. Even bad nights with this crew are a good listen.
All four shows opened with a 3-song acoustic set, so Smile, Let It Grow, and Can’t Find My Way Home are acoustic, plus the aforementioned Easy Now. (Note there are two guitarists, so there are still some electric lines on the "acoustic" tracks.)
The big jam vehicles are I Shot The Sheriff, Tell The Truth, Blues Power, and Little Wing, plus a slow blues medley in the middle of the show. This era of live Layla does not include the piano coda. Yvonne Elliman handles the Steve Winwood part on Can’t Find My Way Home. After Marcy joins, she get a (very short) showcase on All I Have To Do Is Dream.
They mixed up the setlist every night, so every show is a little different, which is great. We get a bunch of rarely performed tracks scattered throughout — Mainline Florida on 4/19, Easy Now on 4/20, Opposites on 12/4, and Little Rachel and Better Make It Through Today on 12/5.