album_name: Best of Beethoven
artists: 531a689ccbcd421cb6afcf5aa22ab1f2
artists: Ludwig van Beethoven
artists: ARTIST_ROLE_COMPOSER
artists: c1398e0ed65947caafead0deaa98ae03
artists: Idil Biret
artists: ARTIST_ROLE_MAIN_ARTIST
name: Piano Sonata No. 21 in C Major, Op. 53 "Waldstein": I. Allegro con brio