Author: Greg H
Date: 2016-05-31 04:00
As far as I can tell after playing a Tosca bass and comparing it to my 1193, the Tosca has a dedicated throat Bb vent. The vent on the body was moved to enhance the notes B,C, C#, D and D# in the staff, which necessitated a separate vent for the Bb. I think the bore was slightly changed (reduced?) to help that range and the notes above. In regard to the E/B twelfth, I think the Low Eb tonehole was moved up to sharpen the Low E, as the B the twelfth above is no longer sharp due to the vent relocation. I enjoyed trying the Tosca but I am sticking with my 39,000 series 1193, which has an added vent to sharpen the formerly flat low E- and Chris P, I am agreement, the F# on top of the staff using the normal fingering is the most problematic for me.
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