Press Q to go to an interval using cents (e.g., 5/4 is 386.31371 cents). Press W to go to an interval using monzos (e.g., the monzo of 6/5 is [1 1 -1>). Press E to go to an interval using ratios (i.e., 13-limit JI intervals). Press R to go to an interval using shorthand names (e.g., 4/3 is FG). Press T to go to a random interval (i.e., there are 1,369 intervals). Press Y to play an interval melodically (i.e., it comes after 440 Hz).
c2a
