One of the first things students animate is 'the flight of a bumble bee'. The flight of the bumble bee is also a piece of orchestral music by Nikolai Rimsky-Korsakov (1899).
I have noted with curiosity some 2nd years attempting musical composition on the eukalali. Music is a close relative to animation, with beats, timing, spacing, narrative and arcs.
It might be blurring the borders a bit here but I found this time lapse / stop mo' music clip quite interesting to watch as it also gives an insight into the film/music maker's process.
Listen carefully for the performer's motivation in the final part of the clip.