The sound quality of the mp3 files is excellent (at 320 kbps it should be), and the music is about what one would expect of Miles and his crew from around the mid 1970s, just before he took an extended break from recording and touring. Miles plays trumpet exclusively on a few tracks, splits time between trumpet and organ on a few tracks, and plays organ exclusively on a few tracks - nothing out of the ordinary. Since Miles was fond of doing extensive post-production work it's hard to know just what the final mixes might have sounded like had he continued to pursue the ideas that he and his crew were working out right before retirement. My guess is that the final product would have been a follow-up to the excellent Get Up With It.
I did some detective work, and while checking out the discography at Miles Ahead, have gathered that the tunes that I was grooving on came originally from a couple bootlegs: Unknown Sessions Vol. 1 and Unknown Sessions Vol. 2.
The first disc consists of tunes recorded between the end of February, 1975 and the end of December, 1976. The second disc consists of two sessions separated by three and a half years. The earlier material is clearly more on the psychedelic tip, with all the Indian instrumentation and wah-wah pedals. The later material turns up the funk quotient, while Miles seems to veer ever into Sun Ra territory. Since these are compilations of recording sessions, expect there to be tracks that just seem to cut off in the middle, as well as occasional studio chatter at the start of some tracks (if you're a collector of the various complete sessions for Bitches Brew, etc., this won't surprise you in the least).
The information for the recordings follows below:
Disc 1
Track 1: TDK Funk recorded Dec 27, 1976 (5:01)
Track 2: Turn of the Century Feb 27, 1975 (15:34)
Track 3: Latin take 7 recorded May 5, 1975 (3:56)
Track 4: Latin take 6 recorded May 5, 1975 (4:41)
Track 5: Latin takes 3 & 4 recorded May 5, 1975 (4:47)
Track 6: Latin take 6 different mix recorded May 5, 1975 (4:15)
Track 7: untitled original 750505 take 2 recorded May 5, 1975 (6:15)
Track 8: untitled original 760330a take 3 recorded Mar 30, 1976 (4:50)
Track 9: untitled original 760330a take 5 recorded Mar 30, 1976) (5:27)
Personnel:
Track 1: Miles Davis (org); Pete Cosey (g, perc); Michael Henderson (el-b); Al Foster (d)
Track 2: Miles Davis (tpt, org); Sonny Fortune (ss, ts, fl); Pete Cosey (g, perc); Reggie Lucas (g); Michael Henderson (el-b); Al Foster (d); James Mtume Forman (cga, perc)
Tracks 3 - 7: Miles Davis (tpt, org); Sam Morrison (ts); Pete Cosey (g, perc); Reggie Lucas (g); Michael Henderson (el-b); Al Foster (d); James Mtume Forman (cga, perc)
Tracks 8 - 9: Miles Davis (org); Sam Morrison (ss, as, fl); Mark Johnson (el-p); Pete Cosey (g, perc); Michael Henderson (el-b); Al Foster (d)
Disc 2
Track 1: Agharta Prelude pt. 2 take 14 recorded Nov. 30, 1972 (17:46)
Track 2: Agharta Prelude pt. 2 take 15 recorded Nov. 30, 1972 (9:36)
Track 3: Song of Landa take 2 recorded Mar. 30, 1976 (4:05)
Track 4: Song of Landa take 6 recorded Mar. 30, 1976 (4:48)
Personnel:
Tracks 1 & 2: Miles Davis (tpt); Carlos Garnett (ss); Cedric Lawson (keyb); Reggie Lucas (g); Khalil Balakrishna (sitar); Michael Henderson (el-b); Al Foster (d); James Mtume Forman (cga, perc); Badal Roy (tabla)
Tracks 3 & 4: Miles Davis (org); Sam Morrison (ss, as, fl); Mark Johnson (el-p); Pete Cosey (g, perc); Michael Henderson (el-b); Al Foster (d)
Notes:
Disc 1 appears to be excerpted from the album UNKNOWN SESSIONS 1973-1976 VOL. 1, released on the Kind of Blue label (KOB 002)
Disc 2 appears to be the contents of the album UNKNOWN SESSIONS 1974-1976 VOL. 2, released under the Kind of Blue label (KOB 003)
Curious?
I do have a number of mp3s of Miles Davis' live gigs from the early and mid 1970s that I will probably be sharing in the near future. Stay tuned.
Updated 10/20/2006
Download Lost Mid 1970s Sessions Album 1 and Album 2.