There are 24 frames per second, so that comes out to around 2,000 drawings. I animated scenes for the film off and on over several years, but the actual production time was about nine months. That musical performance was by the late Caleb Sampson, who was a highly inventive and talented sound artist and musician based in Boston. He had worked on scores for a number of independent filmmakers over the years. Caleb will be missed.
Some animators refuse to work with computers.
I love the computer as a tool. The problem is still playback speed. The main drawback is that you DO have to do everything yourself. You have to build every frame of film. Later, I attended graduate school at the California Institute of the Arts, where I studied with Jules Engel.