Source is Nintendo Insider
The Pokémon Company International has announced that the official Pokémon Sun and Moon soundtrack will become available in November.
Seeing a digital release on iTunes, the Pokémon Sun & Pokémon Moon: Super Music Collection has 175 tracks that are all inspired by the sounds of the Hawaiian Islands. These will have enhanced sound quality in comparison to the Nintendo 3DS exclusives, with the soundtrack to be priced at $0.99 per track or $9.99 for the entire album.
Pokémon Sun and Pokémon Moon will release exclusively for Nintendo 3DS in North America, Australia and New Zealand on November 18th, and in Europe on November 23rd.