I have bee searching for a quality compensating euphonium to step up from my current 4 valve non-compensating horn. The instrument is used mostly in Concert Bands settings, occasionally in small groups, and for occasional solo work. In another thread about a 3 valve baritone (Yamaha 831 Neo I believe), someone made a comment about a 4 valve compensating Euphonium as being awfully expensive for "something that can only be used in brass bands". So, is there a euphonium or baritone type most appropriate for use in 50 - 80 member concert bands? Is there a different horn types suitable for a concert band VS a "brass band"? I am seeking opinions about this question: Given a qualified player, which choice (not necessarily brand specific) would be most appropriate from the following list: 1) 3 or 4 valve baritone, 2) 3 or 4 valve compensating baritone, 3) 3 or 4 valve non-compensating euphonium, 4) 4 valve compensating euphonium? Also am curious about the difference between a 3 or 4 valve compensating baritone VS a 4 valve compensating euphonium (beside difference in bore). Any thoughts on this would be appreciated.