| Re: Valve oil
I have another solution...instead tuning the trumpet to the tuner, violins or the organ, probably the tuning process should start the other way around - tuning everything to the trumpet - all trumpeters have waited for ages the world to turn around them 
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Spada Bach B flat 72, leadpipe 2L/DWMM1.5C
Spada Bach C 256, leadpipe 2LQ/DWMM1.5C
1956 Olds Ambassador Cornet
Spada Custom Piccolo
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