Mark Dresser will give a series of solo and ensemble concerts plus workshops in Denmark, Switzerland, and Austria from March 18-31 Solo Concert: Stadtgarten, Köln, Germany March 18, Workshop: Jazz Hochschule, Köln, March 19 Concerts in Denmark: Copenhagen, Aalburg, Sostrup (details to follow) Workshop at Hochschule für Musik in Basel March 26 Duo with Matthias Ziegler at the Birds Eye in …