The three Masses, which Bruckner wrote in the 1860s and revised later on in his life, are more often performed. The Masses numbered 1 in D minor and 3 in F minor are for solo singers, mixed choir, organ "ad libitum" and orchestra, while No. 2 in E minor is for mixed choir and a small group of wind instruments, and was written in an attempt to meet the Cecilians halfway. The Cecilians wanted to rid church music of instruments entirely. No. 3 was clearly meant for concert, rather than liturgical performance, and it is the only one of his Masses in which he set the first line of the Gloria, "Gloria in excelsis Deo", and of the Credo, "Credo in unum Deum", to music. In concert performances of the other Masses, these lines are intoned by a tenor soloist in the way a priest would, with a line of plainsong.