album_name: Maria Grinberg. Beethoven
artists: 531a689ccbcd421cb6afcf5aa22ab1f2
artists: Ludwig van Beethoven
artists: ARTIST_ROLE_COMPOSER
artists: ac3fd849655b41dfaffdda81a69839ca
artists: Maria Grinberg
artists: ARTIST_ROLE_MAIN_ARTIST
name: Piano Sonata No. 21 in C Major, Op. 53: II. Introduzione - Adagio molto