Music
Aurea Carmina
“Aurea Carmina” by Kevin MacLeod (incompetech.com), licensed under Creative Commons Attribution 4.0 International.
Changes: the first 15 seconds were excerpted and re-encoded as MP3. The volume fades during the final 1.5 seconds of playback.
Radio sounds
The radio's keys and most of its station programmes are made from recordings on Freesound, dedicated to the public domain under CC0 1.0. Thanks to Nekkowe, aarongbuk, wcfl10, sinatra314, code_box, FrankyBoomer and NearTheAtmoshphere.
Gipsy
“Gipsy” by Carl-Friedrich von Steegen, from the album “Sax Pack”, licensed under Creative Commons Attribution-ShareAlike 2.0 Germany.
Changes: 26 seconds were excerpted, mixed down to mono, band-limited, compressed and mixed under a voice-over. The resulting station clip for the home page is licensed under the same license.
Cello Concerto No. 1
Joseph Haydn's Cello Concerto No. 1 in C major, III. Allegro molto, performed by Song Hee-Song and the Metropolitan Chamber Orchestra under Sarah-Grace Williams, recorded by John Benz and dedicated to the public domain.
Changes: 25 seconds were excerpted, mixed down to mono, band-limited, compressed and mixed under a voice-over.