La-La Land’s latest batch of archival soundtracks celebrate a prolific television composer of the ’60s and an orchestral film score from recently deceased pioneer of electronic music. In the first season of Netflix’s cult sketch comedy series I Think You Should Leave with Tim Robinson, an oafish party guest (played with boorish perfection by Tim Heidecker) aggravates some new friends during a game in which people try to guess famous names out of a hat; all of his selections are mostly made-up “obscure” jazz musicians. But one fact, mentioned as an aside,…