Luisteroefeningen voor koor en vocal group. Composed by Tijs Krammer. Book Only. Composed 2011. 83 pages. Harmonia #HU 4332-401. Published by Harmonia (BT.HU-4332-401).
40 inzingers en canons om een koorrepetitie origineel en effectief te beginnen. Composed by Reinier Bavinck. Book Only. Composed 2012. 32 pages. Harmonia #HU 4340-401. Published by Harmonia (BT.HU-4340-401).