A noted composer in his day, Daser has been largely overshadowed by Orlande de Lassus, who replaced him in Munich.
[7] In addition to conducting and composing, Daser was responsible for training boys for the choir, and for hiring vocal and instrumental musicians for the chapel.
[5] Le Maistre's sudden departure from Munich in 1554 caused Daser to also assume duties as court composer.
[2] Although the court of Albert V, Duke of Bavaria was decidedly Catholic, Daser's predilection towards Protestantism was stated in his Missa Ave Marie, where in the Credo section he added a word to the confession of faith "Et in unum Dominum nostrum Jesum Christum", at the time a clear signal of intent.
[8] Iain Fenlon suggests that he was found to be "Lutheran", and that the "ill health" was a pretext upon which allowed the Duke to give Daser a retirement pension of considerate amount.
[5] Daser moved to Stuttgart in 1572 and became kapellmeister there, openly converting as he found no resistance to his Lutheranism from the Duke of Württemberg.
[2] He employed a variety of methods of treating plainchant melody within his masses, including canon, ornamentation, cantus firmus, and juxtaposition.
[3] Orlande de Lassus' mass number 40 Ecce nunc benedicite was directly modeled on a work by Daser.