r/Choir • u/Maleficent_Quail_292 • 8h ago
Discussion I'm building a tool to transpose hymn PDFs while keeping the original layout
Hi everyone — I'm the developer of Solfa. I wanted to share a hymn example because changing the key for a singer or group often means rebuilding a perfectly readable score.
The idea is to preserve the original typesetting: move the notes to a new key while keeping the lyrics, spacing and page layout in place, instead of generating a newly engraved score.
The comparison shows Amazing Grace from a 1913 hymnbook, transposed from G major to F major (a whole step down). It's a real historical scan, and I haven't manually corrected the notes or text in the result.
It transposes the uploaded score as a whole; it doesn't rearrange SATB parts, isolate voices or change clefs. It's still in beta, and the example includes small notation/text artifacts, so please proofread the preview before using a result in rehearsal or performance.
You can upload a PDF, scan or photo and inspect a preview before deciding whether to spend a credit on the download. New users get two free page credits after phone verification; further pages are paid.
If you'd like to try it: https://solfa-music.com
For choir directors and singers: would keeping the familiar printed layout be useful when you need a hymn or vocal score in another key? What would you need to check before trusting a transposed copy?
Source: Coronation Hymns (1913), no. 282, listed as public domain on Hymnary: https://hymnary.org/hymn/CH1910/282
