Guai ai gelidi mostri (1983) by Luigi Nono, with live electronics on 10 loudspeakers in the concert hall (of which you won’t hear anything on youtube of course…). A piece to hear live in the concert hall!
A short interview with Lynn Pook about her work Aptium (unfortunately just in French!):
Philips Pavilion (1958) by Le Corbusier, Iannis Xenakis and Edgar Varèse: