Listen to 10 National Folksongs with Variations, Op. 107: IV. Irish Air in F Major. St. Patrick's Day. Allegretto Scherzoso online. 10 National Folksongs with Variations, Op. 107: IV. Irish Air in F Major. St. Patrick's Day. Allegretto Scherzoso is an English language song and is sung by Ginevra Petrucci and Giovanni Auletta. 10 National Folksongs with Variations, Op. 107: IV. Irish Air in F Major. St. Patrick's Day. Allegretto Scherzoso, from the album Mozart: Complete Divertimenti & Serenades, was released in the year 2024. The duration of the song is 5:01. Download English songs online from JioSaavn.