24 Postcards in Full Colour
Richter released his fourth solo album 24 Postcards in Full Colour, a collection of 24 classically composed miniatures for ringtones, in 2008. The pieces are a series of variations on the basic material, scored for strings, piano, and electronics.
Discussing the album with NPR Classical in 2017 Richter stated "People were downloading ringtones at the time and I felt this was a missed opportunity for composers. That there was a space opening up, maybe a billion little loudspeakers walking around the planet, but nobody was really thinking of this as a space for creative music. So I set out to make these tiny little fragments and then, of course, in the poetic sense, the idea of these little sound carrying objects traversing the planet, I started to think of these as a connection, as a sort of postcard into somebody's life, into their space."