Complex Jazz with large orchestras mainly from 60s & 70s playlist

[veteranof1000psychicwars]

Also from the 80s (1984), l would mention "Dernier Cri" by a great French band called Six Cylindres En V. A seven piece band using all wind instruments along with drums and violin. Chamber-prog that is fun and kind of RIO-ish, along with some definite jazz elements. Sort of in the Miriodor/Aksak Maboul vein. Terrific stuff. Not on Spotify or even CD for that matter...why Musea never picked this one up is beyond me.
So not really helpful to your brief, l am just using the thread as an excuse to bring up the album. ☺

[FrippWire]

Although not exactly an orchestra, Don Ellis specialized in complex and unconventional time signatures for large ensemble. Any of his late 60s/early 70s releases are excellent. Ralph Humphrey, who featured greatly in some of Zappa's 70s ensembles, came to Zappa from Ellis.

[Progbear]

All of Carla Bley's stuff from this period belongs here (including A Genuine Tong Funeral, which credits Gary Burton as bandleader, but Carla wrote and presumably also arranged everything). As well as some of Pekka Pohjola's work (e.g.: Harakka Bialoipokku and Visitation), which is similar in many ways to Carla's.

[D.Eric]

Also from the 80s (1984), l would mention "Dernier Cri" by a great French band called Six Cylindres En V. A seven piece band using all wind instruments along with drums and violin. Chamber-prog that is fun and kind of RIO-ish, along with some definite jazz elements. Sort of in the Miriodor/Aksak Maboul vein. Terrific stuff. Not on Spotify or even CD for that matter...why Musea never picked this one up is beyond me.
So not really helpful to your brief, l am just using the thread as an excuse to bring up the album. ☺

Nice one. Early Miriodor is a good reference.

[Kcrimso]

Ornette Coleman: Science Fiction and Skies Of America. Both are 1972. Skies Of America has London Symphony Orchestra on it and Science Fiction has band of about ten people.

[veteranof1000psychicwars]

Nice one. Early Miriodor is a good reference.

Thanks for adding the clip....l don't know how to do that!

[Batchman]

All of Carla Bley's stuff from this period belongs here (including A Genuine Tong Funeral, which credits Gary Burton as bandleader, but Carla wrote and presumably also arranged everything). As well as some of Pekka Pohjola's work (e.g.: Harakka Bialoipokku and Visitation), which is similar in many ways to Carla's.

Likewise Mike Mantler's various works, including Jazz Composers' Orchestra. And their daughter Karen Mantler, who sounds disarmingly like her mom Carla.