This exercise trains octaves — the interval that anchors your sense of distance on the theremin. Play each note and its octave, listening for a clean, in-tune leap and letting your arm learn how far it must travel to double the frequencies. Octaves are among the easiest intervals for the ear to check, which makes them an ideal ruler for calibrating the whole playing field. Keep the movement smooth and legato, and confirm each octave by ear before moving on.
C4-C5-C4; E4-E5-E4; G4-G5-G4-G3 – in the audio file each note is played 6 times
