"Music making by electronics is now immensely popular and these learning projects offer constructors both sides of this invaluable coin. The projects are suitable for construction in schools and may be useful in helping the GCSE electronic course, and in particular, the music teaching aids could usefully complement basic music studies. Fresh ideas have been introduced to smooth out those stumbling blocks in music that trip up so many beginners. For instance: a rhythm that fits exactly into a bar, an electronic Sol-Fa movable doh that actually moves, a musical instrument that gives true glissando and vibrato, a rhythm setter audio-visual metronome for all times! There are musical instruments with strange sounding names to be made: the elexylophone, the glidaphone, the Melody range, the chordmaker, and to ring the changes, appealing handbells. Finally, the projects have been designed to range from the simple to the more advanced,using discrete components and popular ICd in a variety of circuits that will hopefully widen the constructor's experience."