Underrated comment. This is one of the most inportant parts of FM, imo. Each integer ratio of carrier to modulator has a specific flavor. The "simpler" the r

Underrated comment. This is one of the most inportant parts of FM, imo. Each integer ratio of carrier to modulator has a specific flavor. The "simpler" the ratio the less complex and flavorful the sound. Therefore, fading from irrational to rational ratios can make a crazy, inharmonic sound "stabilize." After working for years with FM, i have found a somewhat narrow range of sounds and the layering becomes more inportant than the algorithm. So getting to know of the ratios is important, 1:2, 1:3, 1:4, etc.