Clarissima planestq[ue] choralis musice interpretatio D[omi]ni Balthasser Praspergii Merspurgen[io] , cum certissimis regulis atq[ue] Exemplo[rum] annotacionib[is] figuris multum splendidis. In Alma Basileorum vniuersitate exercitata - Prasperg, Balthasar, 16th cent (German books before 1601, 1507)