Re: Soprano: Meyer 6 & BG Standard
First, do you know for sure that they want a soprano sax in the school jazz band? Are they getting custom charts written for them? Most stock stage band music does not have a part for soprano sax.
Second, is she already playing alto or tenor sax? Soprano can be somewhat tougher to play in tune, so may not be the best sax to learn with. Soprano has limited applications in all school music I know of. It's used mainly in jazz combos, some broadway show music and some orchestra charts.
Third, Does she have a private instructor? This is the most valuable thing you could contribute to her playing career.
If you really want a soprano sax, you can look at well-cared for used horns or brand new. In the ultra cheap area, this might include Yamaha used or E.M. Winston brand new. This latter can be had for $300 or so, and is actually a decent horn. There's lots of other sugestions elsewhere regarding vintage horns and spending more money. Check out Jim's List of Approved Brands in the High School section. Good Luck.