User:John R. Brews/Music

The account of this former contributor was not re-activated after the server upgrade of March 2022.

© Image: John R. Brews Top and bottom envelope functions for a modulated sine wave.     (PD) Image: John R. Brews First six terms of Fourier series for sawtooth.     (PD) Image: John R. Brews Musical clefs arranged on an 11-line grand staff.     (PD) Image: John R. Brews Envelope of a musical tone     (PD) Image: John R. Brews Approximate spectrum of four instruments playing A4: 440 Hz     (PD) Image: John R Brews Comparison of even tempered notes with harmonics of C2.     (PD) Image: John R. Brews A scale in concert pitch (top) and the scale transposed for the B♭ trumpet (bottom).     (PD) Image: John R Brews Some elements of musical notation.     (PD) Image: John R Brews Error in playing a note of specified pitch.     (PD) Image: John R Brews Audible difference in frequency Δƒ/ƒ at two sound levels vs. frequency ƒ.