...on the alto yet so don't want to spend (and potentially waste) a chunk of money...
Well, the discussion above emphasises that a cheap soprano is unlikely to play well
So, yes, learn on the alto you already have, but continue to covet a soprano, and keep the coveting going until...
1. You find a good soprano for a good price
2. You hear Gerry Mulligan and realise you love the baritone sound so much more
jazzlab sax holder pro with the alto and the adjustable part is as short as it will go which is just about the right length - this doesn't stop me getting achy hands/wrists though....?
I'm now torn between a straight (easier for maintenance according to Stephen Howard) or a curved (able to use a strap to take the weight)........hmm, what to do....?
1. My Jazzlab holder Mk1 will not shorten enough to hold my curved sop... So I use a small neck strap that half throttles me
2. I find a straight sop tiring to hold out in front
3. Classical sop players wave their straight sops in a figure of eight motion that has been described as, "Stirring the Porridge". Some think this action is a mildly ridiculous looking form of musical expression. The real reason for the side to side and up and down gesture is to boost the circulation to the rapidly blanching hands and fingers raised to the level of the chin for prolonged periods. Life blood is flung from heart to hands through the centripetal force of the pseudo-porridge agitation
4. A curved sop sits over the chest and your hands sit nicely relaxed to suit
5. All of these and other theories, comments and suppositions count for nothing compared to you playing the straight and curvy field