Listen to Laetatus sum, Graduale online. Laetatus sum, Graduale is an English language song and is sung by Noël Akchoté. Laetatus sum, Graduale, from the album Alessandro & Domenico Scarlatti: Sacred and Secular Works (Arr. for Guitar), was released in the year 2015. The duration of the song is 3:31. Download English songs online from JioSaavn.