Rarely does the agency interpose any personnel. Consequently, a score may be delivered only a few hours before the downbeat. And to further the problem, many agency execs like an early morning recording. So it's no sleep, lots of coffee, and red eyes in the morning. However, the rewards can be worth it.
Some jingles can repeat for a year or two.
Records Phonograph records are, I think, the easiest to prepare. Although the copyist normally delivers the music to the session, a librarian is rarely used. And, as the music automatically becomes the property of the record company, the leader or contractor collects the pats after taping. This is an interesting field with a high copying scale. This includes specials, musicals, telethons, etc.