| Composer | Title | Year | Pages & duration |
| Raczynski, Mark (1957-) (a.k.a. Mark Rankin) | El cante hondo for organ & trumpet | 1978 | 5p. 8m. |
| Fantasy for organ & chamber organ | 1979 | 3p. 4m. | |
| Radford, R. | Tally-Ho | ||
| Rae, Alex | Commemoration march | 1882 | |
| Reeves, David | Original melodies for individual tone colours | 1978 | 5m. |
| Robinson, Edwin F. | Unknown work(s) | ||
| Rogers, Adrian | The sign of contradiction: tryptich | 1983 | 14p. 11m. |
| Strengthen for service, Lord | |||
| Two preludes on "Ach bleib mit deiner gnabe" | 1986 | 2p. | |
| Harmonization and postlude a la musette on the Ascension hymn "Llanfair" | 1981 | 3p. | |
| Two preludes on plainchant hymns "Conditor alme siderum" & "Verbum supernum prodiens" | 1981 | 4p. | |
| Rose, Jonathan (1951-) | Continuum for organ with two manuals, three players, improvisation & tape | 1975 | 1p. |
| Rose, Sykes L. (1951-) | Postlude | 1974 | 10p. 6m. |
| Rosenstengle, Ferdinand (c. 1820-1890) | March for St Stephen's Cathedral, Brisbane | 1874 | |
| Ross, Colin A. C. (1911-1993) | Improvisation on "Ich ruf' zu dir" | 1966 | |
| Rumsey, David (1939-) | Ice music | 1988 | 6p. 4m. |