This tuning was devised for the restored Schnitger organ in St Jakobi, Hamburg. The following table shows the cent values of the scale:

Ab Eb Bb F C G D A E B F# C# G#
-3.1 +3.1 +7.4 +9.4 +7.0 +4.7 +2.4 0 -2.4 -4.7 -7.0 -5.1 -3.1

Seven fifths on the ‘natural’ keys F-C-G-D-A-E-B-F# are smaller than pure by 1/5 syntonic comma, three fifths are pure (f#-c#, c#-g# and f-bb), the fifth ab-eb is enlarged by 1/5 syntonic comma and the fifth eb-a# is enlarged by 1/10 of a Pythagorean comma.

This temperament has been used in the organs at Greyfriars, Oxford, St Paul’s, Deptford, St Giles-in-the-Fields, and the Chapel of God’s Gift, Dulwich.