Friday 50s, an album from 1974, so about a half-century ago... 😁
With Michael Tilson Thomas and the London Symphony Orchestra. "The union wasn't taken seriously at the time.... Don't let old, outworn preconceptions on either side of the fence prevent you from checking out this beautiful record." Richard Ginell/Allmusic. Album Wikipedia ; Discogs.
The Mahavishnu Orchestra (MO) released 8 studio albums from 1971 - 89. This was the first album of the '2nd MO': John McLaughlin, guitars; Jean Luc Ponty, violin; Gayle Moran, keys & vocals; Ralphe Armstrong, bass; Narada Michael Walden, drums. Produced by '5th Beatle' George Martin. MO: Wikipedia ; Allmusic ; Discogs.
Mahavishnu Orchestra, Apocalypse, full album: YouTube ; Spotify
This is on the Jazz Best Albums 1974 playlist at Spotify/Jazz Todayish. 😎