Antonín Dvořák composed the Requiem at the beginning of his peak creative period. The construction of the mass is not typical: the composition is divided in two basic parts, each of which begins with the original interconnection of several liturgical sequences. Likewise, Dvořák inserted between the "Sanctus" and "Agnus Dei" a lyrical movement "Pie Jesu," created on the base of the final text of the "Dies Irae" sequence. Its basic melodic motif is created by two ascending half-tones with an incorporated very sorrowful diminished third, which begins the opus and continues in many variations as the main motif running through the entire work. Dvořák's Requiem is a supreme opus of classicist-romantic synthesis. This composition inspired many other Czech composers, e.g. Josef Suk and Bohuslav Martinů.