I voted for options 3 and 4.
Given the vast amount of surface for heat transfer (in both cases) and the impossibility to apply some body warmth from hands, You´ll just have to use open bugle clarin-technique until the horn has thawed...
Hans
Melton 46 S
1903 or earlier GLIER Helicon, customized Hermuth MP
2009 WILLSON 6400 RZ5, customized GEWA 52 + Wessex "Chief"
MW HoJo 2011 FA, Wessex "Chief"
I've done my share of below freezing temperature parades. Ended up semi-intentionally having all 4 valves (BBb Marching Tuba) freeze down and lipping Everything to more or less the correct pitch. No experience with rotors, but I have to imagine it being close to or just as miserable.
Gnagey-Phone CC
Edwards B-454 Bass Trombone
Shires Q-30 Tenor trombone
King 3B Trombone
Fender P Bass
Ibanez SRH-505 Bass
Army Musician
"Don't play what's there; play what's not there".
-Miles Davis
One day years ago, I volunteered to play an hour for a Salvation Army kettle. Yes, it was below freezing. Before the hour was over, my Bessophone was effectively a 3-valve tuba. At least the 4th valve froze open.
iiipopes wrote: ↑Fri Dec 18, 2020 5:01 pm
One day years ago, I volunteered to play an hour for a Salvation Army kettle. Yes, it was below freezing. Before the hour was over, my Bessophone was effectively a 3-valve tuba. At least the 4th valve froze open.
Yes! That is my situation...SA kettle with some friends. Worried about valves. I was hoping that somebody would tell me that one or the other was impervious to freezing up!