There is currently a bundle on Groupees of the music of German synthwave artist Compilerbau and the bundle includes his yet to be released new album 'Fragments of Bach' with 20% of your payment being donated to Habitat For Humanity International.
These are downloads not physical copies.
For $2 minimum you get:
North Wall (EP)
Talking Machines (album)
The Void (EP)
Terraformer (EP)
For $4 minimum you also get:
Trickster's Paradise (album)
Tachyon (Extended Edition) (album)
Fragments of Bach (album)
The first bonus has been unlocked and once sales pass $1,500 you also get:
Bach piece cover