For permanent ownership of MP3 files that you can move between devices, these platforms offer individual tracks and full albums:

Most fans access Glass Animals music for "offline" use via subscription services. While these aren't standalone MP3 files you can share, they allow for high-quality listening without an internet connection:

: Provides access to official tracks and music videos, which can be downloaded for offline use with a Premium membership. 📀 Key Discography for Your Library