"Voggenreiter Poster Blues-Harp, By Dieter Kropp: The notes of 7 Blues-Harp tunings (C,G,D,A,F,Bb and Eb), Important scales and chords using the example of the C-Harp, Charts for Cross-Harp and various positions on the..."

Voggenreiter, Poster Ukulele: Overview of the simple basic chords for the tunings D (a-D-F#-B) and C (g-C-E-A), With tuning chart and overview of the notes on the fretboard, Size DIN A1, In German language