https://www.cpr.org/classical/blog/composer-behind-bugs-bunny-introduced-generation-classical-music
And classical music as well. Carl Stalling used a 50 piece orchestra and turned out on average one score each week for the cartoons.
Cool! I’m glad to see I’m not the first one to mention Carl Stalling.
Many of the studios also had a music publishing interest
and/or record co., so interspersed with the
great original stylings by Stalling, Bradley, and others
would be musical quotes
from decades worth of catalog, subliminally driving sales of
records and sheet music. The acquisition of publishers also
was a hedge against 3rd party synchronization fees.
WB enforced an inclusion of an entire song
in early days.