Werk BWV 172

Erschallet, ihr Lieder, erklinget, ihr Saiten! (Resound, you songs; ring out, you strings!),[1] BWV 172,[a] is a church cantata by Johann Sebastian Bach, composed in Weimar for Pentecost Sunday in 1714. Bach led the first performance on 20 May 1714 in the Schlosskirche, the court chapel in the ducal Schloss. Erschallet, ihr Lieder is an early work in a genre to which he later contributed complete cantata cycles for all occasions of the liturgical year.