The classical music blog

 -Tchaikovsky's Serenade for strings in C major, Op  48- This music was composed in 1880, and It was first performed in October 30, 1881 in St. Petersburg at a Russian Musical Society concert. The structure of Serenade for strings has 4 movements - Pezzo in forma di sonatina (C major , G major) / Valse:Moderato - Tempo di valse (G major) / Élégie: Larghetto elegiaco (D major)./ Finale (Tema Russo) (G major, C major)/ In Pezzo in forma di sonatina, Tchaikovsky intended the first movement to Mozart's style, and It was based on the form of the classical sonatina. Link: Tchaikovsky's Serenade for strings in C major, Op 48

 -Trio Sonata for 2 Violins and Continuo in G, Op 5, No.4, HWV 399, Allegro- George Frideric Handel composed famous works including cantatas, Solo and Trio sonatas, operas, arias, duets, etc. In 1739, This work is played by harpsichord and two violins. The tempo ordinario movement is based on the overture to "Parnasso in Festa" (HWV 73). The structures of this music is in five part - Allegro / A tempo ordinario / Passacaille / Gigue. Presto / Menuet. Allegro moderato. Trio Sonata for two violins and continuo in G, Op 5, No.4, HWV 399, 1. Allegro