issues on working example

[CarrieFilion]

• need to download the sound font from soundfonts4u, too big to have in repo
• currently go from octave = 1 to octave = 8, 8 doesn't actually exist. On the piano, octave 0 is only a few notes. Maybe just drop to m = 7? Only reason that things work ok is because I only play coefficients (notes) that have an amplitude of at least 2.5% of the maximum amplitude. This effectively gets rid of the m = 8 terms for the examples here
• the positive/negative amplitude mapping here will change as a function of phase angle (i.e. if I rotate the same galaxy, the positive/negative won't be the same because sine/cosine encodes phase angle info). Not ideal