Actually, there are compelling reasons for a TARV in my personal view:
The precision of the rotary valve
The light action of the linkage/valve
The low maintenance of a rotary valve
The long leadpipe
Being able to play/hold the horn with one hand
The more even tube inner diameter through the valve cluster
These are all performance options. As far as the blow, sound and intonation goes, that is a detail issue that is not solved on the drawing board. Most horn projects that I have been involved with get light bracing and the rest are determined by experimentation. As far as ergonomics go, I have been careful with criticism as this is someone elses dream. It is an interesting study in community design recommendations.
Brek is a technician and simply asked a question about the motivation to build a horn like this as a TARV. Looking at his own accomplishments (some of which are documented here at TrumpetMaster), I am sure that he is not challenging the project.......
Originally Posted by brekelefuw