Learning aids

摘要

PCT No. PCT/GB92/00573 Sec. 371 Date Feb. 1, 1994 Sec. 102(e) Date Feb. 1, 1994 PCT Filed Mar. 31, 1992 PCT Pub. No. WO92/17868 PCT Pub. Date Oct. 15, 1992A learning aid adapted to be attached to an instrument of the type defined. The learning aid is arranged to lie generally parallel with the fretboard or fingerboard of the instrument and to afford a visual display indicating the string or strings, and the position at which the string or strings are to be depressed against the fretboard or fingerboard to obtain a desired musical note, chord or scale.