Folke Rabe has been played on NTS shows including Fractal Meat On A Spongy Bone, with Was?? first played on 2 August 2016.

Folke Rabe (Stockholm, Sweden, 28 October 1935 - 25 September 2017) was a Swedish composer. Works include the electronic drone pieces What?? (also translated as "Was??") (1968), Basta for solo trombone (1982), Escalations for brass quintet (1988), Concerto for trombone: "All the Lonely People" (1989) featuring quotes from The Beatles' "Eleanor Rigby", and With Love No. 1 and 2 for piano (1988).

According to Robert Erickson, What?? contains "no obvious discrete changes" and "no sharply defined sections". The piece uses several drone pitches,…