Luigi Nono - A Pierre. Dell’azzurro silenzio, inquietum (1985)

Luigi Nono
A Pierre. Dell’azzurro silenzio, inquietum
for bass flute, double bass clarinet and live electronics (1985)
video created with Audacity, Sonic visualizer and Vokoscreen on an openSUSE 13.2 Linux system.

[@bobbylovejoy]

Thanks for posting.

[@javiervivanco919]

Musica para oír en atmósferas oníricas.

[@heindke]

what spectrogram is this?