thumb|left|The Concert Model E was designed for church use and features a full 32-note pedalboard. The B-2 and C-2, introduced in 1949, allowed vibrato to be enabled or disabled on each manual separately. In 1954, the B-3 and C-3 models were introduced with the additional harmonic percussion feature, advertised as "touch response percussion control". Despite several attempts by Hammond to replace them, these two models remained popular and stayed in continuous production through early 1975. The last B-3 and C-3 organs manufactured were built from leftover parts, and are not considered as good as earlier models.
thumb|left|The Concert Model E was designed for church use and features a full 32-note pedalboard. The B-2 and C-2, introduced in 1949 allowed vibrato to be enabled or disabled on each manual separately. In 1954, the B-3 and C-3 models were introduced with the additional harmonic percussion feature, advertised as "touch response percussion control". Despite several attempts by Hammond to replace them, these two models remained popular and stayed in continuous production through early 1975. The last B-3 and C-3 organs manufactured were built from leftover parts, and are not considered as good as earlier models.