What are the principle differences between tin whistles constructed of brass vs. nickel, other than price. They would be used by beginners. Does either instrument possess a more desirable timbre compared to the other, live a longer useful life, or suffer less tarnish/oxidization? Is either material preferable for beginners?
This page here shows the two varieties in question: https://www.ellismusic.com/search.aspx?searchterm=flageolet