1) Four easy hymns
2) Quiet music before service
3) Optional: music while people receive communion.
All other parts of the service are said, or sung unaccompanied. There is no choir.
Service ends about 10.05, so there is time to play a second service elsewhere.
You can either play the church's three-manual organ or a portable one-manual keyboard, so pianists are welcome to apply.
No familiarity with Catholic mass required. All hymns are announced. Friendly clergy and congregation.
The church of St Michael and St George, White City, is also looking for an organist for their 11 o'clock service, and is only 100 yards away. The timing would easily allow someone to play both services.