Hi Krister! Ok, so the original question was dealing with Canon in D, Melody 6 – Measure 23. In this measure, we have to reach the 4th string to play a fretted note, while not muting string 3 (open). The trick lies with the left hand form. Try and copy the form I laid out in this video. Proper form should allow your middle finger the ability to reach over string 3 and fret only string 4.