The Mass No. 2 in E minor WAB 27 by Anton Bruckner is a setting of the mass ordinary for vocal soloists, chorus, wind band and organ. Bruckner wrote it to celebrate the construction of a new church. The piece is based strongly on old-church music tradition, and particularly old Gregorian style singing. The Kyrie is almost entirely made up of a capella singing for eight voices. The Gloria ends with a fugue, as in Bruckner's other masses. In the Sanctus, Bruckner uses a theme from Giovanni Pierluigi da Palestrina's Missa Brevis.