Glossary: Pouces

In France it is common to specify the pitch of an instrument in pouces (“thumbs“, i.e. inches)

Equivalent pouce - pitch
PoucesPitchAnnotations
10d/g
11c/f
13b/eb
14a/dmore common in earlier times, much sharper sound than G/V
16g/ccommon for instruments of type Bechonnet or Schäferpfeifen
18F/Bb
19Eb/A
20D/Galso called “low D”
23C/Falso called “low C”
24Bb/Eb
26A/Dvery uncommon
30G/Cwurde von Andreas Rogge entwickelt, bis jetzt noch weniger als 10 Instrumente weltweit a special developement by Andreas Rogge, currently used in less than 10 instruments worldwide (see Grande Bourbonnaise)

Most popular pitches are currently 16 and 20 pouces.