Worked example
Find keys for my singer
A soprano line tried against a singer's range in every key within six semitones. Four fit, unranked, and the choice stays with the musician.
The studio will check possible keys and show the options without ranking them. You choose a key later; this request does not transpose your music.
What the musician filled in
- The piece
- Old Hundredth, the attached MusicXML
- Melody or voice to check
- Soprano
- Singer's lowest comfortable note
- A3
- Singer's highest comfortable note
- C5
- How is that melody notated?
- At concert pitch — the notes I hear
- How far may the key move?
- Up to 6 semitones higher or lower
What the studio asked back
Nothing. The form had what it needed, so the work went straight ahead.
How long it took
9 minutes from the moment work began to the files being ready, for this short hymn. A longer score takes longer.
What came back
- The key optionsThe four keys that fit, and the six spellings left out
- The checksWhat was read, and why every other key fails
- The guideWhat was done, what was not, and how to perform it
Also delivered: the same options as a data file.
| Resulting key | Key signature | Soprano range |
|---|---|---|
| D major | 2 sharps (F♯, C♯) | A3 – A4 |
| E♭ major | 3 flats (B♭, E♭, A♭) | B♭3 – B♭4 |
| E major | 4 sharps (F♯, C♯, G♯, D♯) | B3 – B4 |
| F major | 1 flat (B♭) | C4 – C5 |
The order is not a ranking or a recommendation.
What the delivery declares
- Old hundredth key options: the score was checked in an independent model review the platform recorded
- No human listening claimed
- Old hundredth key options: the automatic check against your source did not run.
From the guide that came with it
Every delivery comes with a written guide. These lines are copied from this one.
Difficulty and playability notes
The check covers the lowest and highest notes only. It does not measure how long the line stays near either edge of the range, breathing, or vowels.
The Alto, Tenor and Bass were not checked, so these options say nothing about whether those voices sit well in the new keys.
What was done and what was not
No key was chosen, recommended or ranked.
Start one like this
The same few questions, with your own music. Nothing runs until you have set a spending limit and pressed Start.
Find keys for my singerFind keys for my singer