George Crumb — American Composer born on October 24, 1929,

George Crumb is an American composer of avant-garde music. He is noted as an explorer of unusual timbres, alternative forms of notation, and extended instrumental and vocal techniques. Examples include seagull effect for the cello, metallic vibrato for the piano, and using a mallet to play the strings of a contrabass, among numerous others. He is not an electronic music composer; however, many works call for amplification of instruments, such as Black Angels or Ancient Voices of Children. Crumb defines music as "a system of proportions in the service of spiritual impulse.".. (wikipedia)

One very important aspect of our contemporary musical culture - some might say the supremely important aspect - is its extension in the historical and geographical senses to a degree unknown in the past.
The retrospective glance is a relatively easy gesture for us to make.
In a broader sense, the rhythms of nature, large and small - the sounds of wind and water, the sounds of birds and insects - must inevitably find their analogues in music.
Perhaps two million years ago the creatures of a planet in some remote galaxy faced a musical crisis similar to that which we earthly composers face today.
I am optimistic about the future of music.