# Old Hundredth: Soprano key options (unranked)

Source: your Old Hundredth MusicXML, Soprano part, bars 1–8 (all 32 notes), written in G major (one sharp).
Your singer's comfortable sounding range: **A3 to C5**.
Search: every spelled transposition up to 6 semitones up or down, with no octave displacement beyond that.

Four transpositions fit. They are listed by how far they move the music (furthest first, the same order the check produced). **The order is not a ranking or a recommendation.**

| Transposition from G major | Semitones | Resulting key | Key signature | Soprano sounding range | Soprano written range |
|---|---|---|---|---|---|
| Down a perfect fourth | 5 down | D major | 2 sharps (F♯, C♯) | A3 – A4 | A3 – A4 |
| Down a major third | 4 down | E♭ major | 3 flats (B♭, E♭, A♭) | B♭3 – B♭4 | B♭3 – B♭4 |
| Down a minor third | 3 down | E major | 4 sharps (F♯, C♯, G♯, D♯) | B3 – B4 | B3 – B4 |
| Down a major second | 2 down | F major | 1 flat (B♭) | C4 – C5 | C4 – C5 |

The written and sounding ranges are the same because your score is at concert pitch and the Soprano is on a plain treble clef. In every option the lowest note is the one in bar 2, beat 1, and the highest is the one in bar 7, beat 1.

## Spellings left out: 6

The check also found six other spellings of the same four pitch levels. As you asked, they are left out because their key signatures need double sharps or double flats. Each one sounds exactly like one of the four keys above, so leaving them out loses no pitch level.

| Transposition from G major | Semitones | Key | Key signature | Double accidentals it needs | Sounds the same as |
|---|---|---|---|---|---|
| Down a doubly diminished fifth | 5 down | C𝄪 major | 14 sharps | F𝄪 C𝄪 G𝄪 D𝄪 A𝄪 E𝄪 B𝄪 | D major |
| Down an augmented third | 5 down | E𝄫 major | 10 flats | B𝄫 E𝄫 A𝄫 | D major |
| Down a diminished fourth | 4 down | D♯ major | 9 sharps | F𝄪 C𝄪 | E♭ major |
| Down an augmented second | 3 down | F♭ major | 8 flats | B𝄫 | E major |
| Down a diminished third | 2 down | E♯ major | 11 sharps | F𝄪 C𝄪 G𝄪 D𝄪 | F major |
| Down a doubly augmented unison | 2 down | G𝄫 major | 13 flats | B𝄫 E𝄫 A𝄫 D𝄫 G𝄫 C𝄫 | F major |

(𝄪 = double sharp, 𝄫 = double flat.)