2005.  - oakie doakie,schnipp-schnapp-song (das friseurlied),das schaffnerlied,110 - waehle 110 (das polizeilied),komm, lass uns tanzen,brumm brumm (das automechanikerlied),muellmannlied,das bademeisterlie..

1972.  - rotzsch, hans-joachim - ein herz, das seinen jesum,auf, glaeubige, singet die lieblichen lieder,rotzsch, hans-joachim - schwingt freudig euch empo,die liebe zieht mit sanften schritten,flaemig, ma..

2017. This LP pairs a live-electronic recording with a text-sound piece. 'Nachtflug' (1999) is based on electronic treatment of the sounds of bats made audible, and is performed by Hans W. Koch and Behrendsen. 'Atem..

1979.  - i.  Arnold-soprano, h.  Eisler,a.  Asriel,v.  Rohde,,k.  Scharmacher-piano & g.  Schleicher,e.  Koch-clarinet &,g.  ..

2010. Musica Improvvisa is a cutting-edge project of multi-sensorial improvisation, an open dialogue among different musical experiences, narratives and aesthetics that charters the unexplored soundscape of the tell..

2020. Subtitled 'Photo-Graphic Scores 1992-'95', the material on this DOUBLE-CD was recorded at five different concerts, with the participation of many fellow-musicians including Jean Derome, Lesli Dalaba, Paulo Ang..

2017. Renowned improvisor, composer and multi-instrumentalist Fred Frith teams up with experimental saxophonist and bass clarinetist Hans Koch. On 'You Are Here' they create intriguing sound worlds and fascinating t..