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Fragment of CONTRACTIONS, mobile for woodwind quintet 1965. Each of the 5 players follows a concentric circle in either direction. Graphic notation alternates with traditional notation. Originally published by E.C. Schirmer, Boston. Copyright transfered to Richard Felciano in 2003. By permission.

1970-1980: The period Felciano conducted the San Francisco Symphony in performances of Galactic Rounds, whose rotating trumpets and trombones created Doppler shifts in the San Francisco Opera House. Behind him is the travel version of the Buchla 200 Series analog synthesizer, which he used in his 14-channel environment with light sculptures for Boston's then-new City Hall.

Assembly prior to AES Paris 2006 demonstration

The orthogonal axes chosen for the transverse waves is chosen because of the asymmetric coupling in the two directions. On a flat-top acoustic guitar the top plate moves up and down "more easily" then from side to side.

Amplitude maps to displacement and complex phase to color hue.

Mascot diagram of information flows in HTM client/server sound synthesis system

Spherical magnitude response, raw data. Thanks to Perrin Meyer for this example.

Spherical magnitude response, smoothed by truncating low power / high order spherical harmonics. Thanks to Perrin Meyer for this example.

On one hand I obviously like to play, and on the other hand I tend to forget: I have just discovered an animation I have made in my e-mail folder, Jan 2007 :)

Obviously, I like to play and tend to forget. I have just discovered a nice animation I made in January :)