Con sordino for male voice and piano : Joseph Marx : Free Download, Borrow, and Streaming : Internet Archive
Sonata for Violin and Piano: v. Var.4: Andante teneramente: sempre con sordino - song and lyrics by Leonard Bernstein, Glenn Dicterow, Gerald Robbins | Spotify
![PDF) An analysis of Beethoven's 'senza sordino' marking in the first movement of his Piano Sonata in C sharp minor op. 27 no. 2, including the views of his pupils Carl Czerny PDF) An analysis of Beethoven's 'senza sordino' marking in the first movement of his Piano Sonata in C sharp minor op. 27 no. 2, including the views of his pupils Carl Czerny](https://0.academia-photos.com/attachment_thumbnails/52196868/mini_magick20180818-7156-yn286p.png?1534661425)