album_name: Etudy a polky pro klavír
artists: 487e4895647a431a8a62ede69ae21329
artists: Bohuslav Martinů
artists: ARTIST_ROLE_COMPOSER
artists: fa1d4615892442ff98ab4017de954761
artists: Josef Hala
artists: ARTIST_ROLE_MAIN_ARTIST
name: Etudes and Polkas. Piano Pieces - Ist Book: Etude in A Major