Listen to Fidelio, Op. 72, Act I: "O welche Lust" online. Fidelio, Op. 72, Act I: "O welche Lust" is an English language song and is sung by Royal Philharmonic Chorus. Fidelio, Op. 72, Act I: "O welche Lust", from the album 100 Essential Opera Arias, Songs & Overtures: The Very Best Soprano, Tenor, Baritone, Bass & Mezzo Solos, Duets, Trios & Choruses from Mozart, Beethoven, Verdi, Rossini, Puccini & More, was released in the year 2014. The duration of the song is 3:46. Download English songs online from JioSaavn.