Historically, sonographic representations of sounds are based on two types of scales: linear or logarithmic (Xenakis, 1971; Roads, 1995; Lesbros, 1995, 1996; Xiaoying, 2008). These two kinds of scales introduce beats between sounds produced by adjacent lines of the image. In a linear scale, for example, of 1 Hz by pixel, a beat of 1 Hz will appear if any horizontal line has a thickness of more than 1 pixel. In a logarithmic scale, for example, of 192 ppo (pixel per octave), a beat of one 16th of semitone will spread. Here, we introduce a new kind of scale in order to use hand drawn sonographs, avoiding this particular beat effect. We extend the usual additive method to frequency modulation and add a way to spacialize sonographs in stereo channels. We propose different kinds of filters to control rhythm and harmony, and finally, we expose a way to compose music tightly linked with a video by creating sonographs directly from video frames.