Lass mich dein sein und bleiben

Delphin Strungk (or Strunck) was a German composer and organist associated with the North German school. Only three works for keyboard (organ included) have survived. This is one of them.

The tune is very well known: O Haupt voll Blut und Wunden/Ach Herr mich armen Sünder/Herzlich tut mich verlangen.

I've uploaded this piece before, but was not too happy with the ending after listening back. So I recorded a new one on the same organ with the same choice of registration (to be found in the video).

Sheet music is in the attachments.