sentences:  His comic shop closed in 2001 and he was the graphic designer for Oog & Blik from 2001 till 2010, until the instrument business became his full-time activity.Landman is musically untrained and cannot play chords.Unsatisfied about the limitations of prepared guitars Landman began creating and building several experimental string instruments, including electric zithers, electric Cymbalum, and electric Koto.