In Nativitate Domini'. Par RHEINBERGER JOSEF GABRIEL. Rheinberger's 'Mass in A Major' is a work that ist easy to perform. Making no use of polyphonic developments, it remains within a harmonic style that is lightened by brief imitative phases. The organ accompaniment serves as a tonal support and expands the three-part writing into four parts. / Messe / Répertoire / Orchestre: Choeur SSA, Flûte Traversière, 2 Violon