​
Steel constant k – ESTIMATE
Steel thickness in – ESTIMATE
Length sweep in – ESTIMATE
Steel Tongue Drum – EMPIRICAL ESTIMATES (pending measurement)
Cantilever-style estimate only – not fabrication authority. Replace with measured validation data before cutting.
Tongue
MIDI
Target Hz (EST)
Length in (EST)
Length mm (EST)
Bass
50
146.8
4.16
105.6
T1
57
220.0
3.40
86.2
T2
58
233.1
3.30
83.8
T3
60
261.6
3.11
79.1
T4
62
293.7
2.94
74.6
T5
64
329.6
2.77
70.4
T6
65
349.2
2.69
68.4
T7
67
392.0
2.54
64.6
T8
69
440.0
2.40
61.0
T9
72
523.3
2.20
55.9
T10
74
587.3
2.08
52.8