Sonde is a Canadian experimental musical group from Montreal that was founded in
1975. Originally named MuD, the ensemble emerged from a course taught by Mario
Bertoncini at McGill University. Their first performance took place in 1975 at
Pollack Hall, featuring innovative sound sources. Sonde's approach centered on
the concept of a "sound source," where both the composition and the object
generating the sound are integral to the performance. This philosophy led to
numerous performances across North America and Europe from 1975 to approximately
1985, as well as engagements in tel...