This is a complete catalogue of Joshua's original compositions, orchestrations, arrangements and editions. A select number of his works are published by Universal Edition.
| Title | Instrumentation | Publisher |
|---|---|---|
| Sir Christemas (2017) | Tenor, semi-chorus and SATB | Universal Edition |
| Songs of Stone (2018) | Upper-voices (div. 3S3A) | Universal Edition |
| Tenebrae factae sunt (2021) | SATB | Universal Edition |
| Ubi Caritas (2021) | SATB (div. 2S2A2T2B) | Universal Edition |
| Title | Instrumentation | Publisher |
|---|---|---|
| Amor (in progress) | 0.1.1.0//1.1.Hrp/Str | N/A |
| Forest (2019) | Solo Bass Clarinet | N/A |
| Futility (2018) | MSop.Vln.Pno | N/A |
| Title | Instrumentation | Publisher |
|---|---|---|
| Sibelius, Jean: Bagatelles | 2.2.2.2/4.2.3.1/1.2.Hrp/Str | Universal Edition (pending) |
| Sibelius, Jean: Humoristischer Marsch | 2.2.2.2/4.2.3.1/1.2/Str | Universal Edition (pending) |
| Title | Instrumentation | Publisher |
|---|---|---|
| A Nightingale Sang in Berkeley Square | Mezzo-soprano and piano | Universal Edition (pending) |
| Title | Instrumentation | Publisher |
|---|---|---|
| Sheppard, John: Jesu salvator saeculi, redemptis | AATTB | Open source (CPDL) |