I dunno about playing no F# on a stringed instrument, and don't know why, when the brasses are around, anyone would want to play strings anyway. But it's really easy on a trumpet -- between E and G, and hold down the second valve. It's pretty simple on a piano, too, even though it's a stringed instrument -- just press the key.

I think I'll de-tune my trumpet a bit and play that neutron star note really, really loud and see what happens. Kick up a little excitement, mebbe.