Completed very short duo for clarinet and Marimba in D

At 2' it is the merest of bagatelles.

Labeling it Opus 53, as moving the Piano Sonata #4 around in the catalog has gotten old, so Opus 52 it stays.

New program exactly on track at 72 minutes since 15-Dec-2012, or 6.67% of the planned program of 1080 minutes of music in a year, or 18 hours.

If you want to grind on something, lay siege to it, and set a simple chart towards the goal. Spreadsheets are free these days.