Helbling Verlag Uku & Lele
Helbling Verlag Uku & Lele, Ukulele Coursebook for Children Aged 6 and Up, By Michael Fromm, With coloured sheet music adapted to Boomwhackers, With chords and tablature, ISBN: 9783990353431, ISMN: 9790502393106, HBLS 7681, DIN A4, 88 pages, In German language, Includes online video material