Prelude and Fugue in F major

You are no doubt familiar with the famous Tuba Tune in D major by C S Lang. Here's a tiny Prelude & Fugue for two staves by the same composer.

This work is from the same book (Two-Stave Voluntaries by Modern Composers - First Set - pub. Novello 1957) from which I took the short prelude on Melcombe which I uploaded a couple of days ago.

I'm just been mucking around here at the organ tonight. I've never played this work previously, and this is the result of about 30 minutes' work. It was good sight-reading practice. I didn't worry about Lang's dynamics markings, but aimed to follow his phrasing as closely as I could. The registrations use the flue double throughout, with the addition of the HW Master Pedal Coupler in the Prelude and a few pedal notes (where marked) at the end of the Fugue.

Attached is the MIDI file, the score and the Wikipedia reference about Lang.