From around 1720, the Inventions were originally composed as musical keyboard exercises for Johann Sebastian Bach's students while living in Koethen. Like the Well-Tempered Clavier, the Inventions were first published after his lifetime (in 1801) Duet Sheet Music for Bb Trumpet accompanied by Cello arranged by Lars Christian Lundholm. Two Part Invention No. 1 is also known by alternative title: BWV 772, 15 Inventions Number 1. - Instrumentation: Bb Trumpet and Cello - Level: Medium - Score Type: Solo Score - Tempo: Medium - Genre: Baroque - Composer: Johann Sebastian Bach - Year Composed: 1720 - Pages (approximate): 3