Haydn's Mass in B flat 'Maria-Theresia Mass' Hob.XXII/12 for 4 soloists, choir, orchestra and organ. Piano reduction and vocal score by Hans Feldigl.

Haydns Messe in B-Dur 'Maria-Theresia-Messe' Hob.XXII/12 für 4 Solisten, Chor, Orchester und Orgel. Klavierauszug  von Hans Feldigl.