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	Volker Horn (tenor) Ludwig van Beethoven - `Das liebe Kaetzchen` - Austrian folksong (1820), Hess133 Volker Horn (tenor), Hans Hilsdorf (piano) March 1997, Berlin. (9) Ludwig van Beethoven - Canon à 4 `Ars longa, vita brevis`, WoO 193 Heidi Person (soprano), Ulrike Helzel (mezzo-soprano), Peter Maus (tenor), Volker Horn (tenor) March 1997, Berlin. (4) Ludwig van Beethoven - Canon a 2 `Si non per portas, per muros`, WoO 194 Volker Horn (tenor) Ralf Lukas - baritone. March 1997, Berlin. (3) Ludwig van Beethoven - Canon à 3 `Glück, Glück zum neuen Jahr`, WoO 176 Peter Maus (tenor), Volker Horn (tenor) Ralf Lukas - baritone. March 1997, Berlin. (5)