English: Flexatone notation according to guidelines. Rolls indicate shaking, lines indicate glissando direction. Chevrons indicate alternating thumb pressure (a glissando up and down). If the instrument is played with it's knobs removed, mallet strikes are indicated by single notes and glissando direction by curved arrow lines (similar to guitar tab pitch bend notation). Probably due to it being notorious difficult to control, it is recommended that pitch designation always be approximate.