Simon's projects with other musicians have included:

Organ & piano with Jeremy Filsell

with Jeremy Filsell (piano soloist)

and Simon Niemiński (organ)

Organ & actress with Pauline Knowles

Organ & harp/clarsach with Catriona McKay

Organ & guitar with Adele Neilson

Organ & piano with Elspeth Wyllie

Organ & cor anglais with Sarah Bishop (Royal Symphonic Orchestra of Seville)

Organ & mezzo soprano with Judy Brown

Organ & saxophone with Anna Wright (University of British Columbia)

Organ & brass band with Kingdom Brass (annual Christmas concert)