( OP )
Thanks again to all. The various suggestions, whether feasible or not, are appreciated!
Don't have time to do all the quoting this time around, but just to respond to some of the ideas:
re: choosing an apartment with a different design/location
Well, I took the plunge and and I'm signing the lease tomorrow on this place. Had to do something soon, and there really wasn't anything looking much better or cheaper. In this neck of the woods, beggars can't be choosers, and unless you have $800k or more to drop on a decent house, you're a beggar.
re: sound absorption blankets
I found them on Markertek.com -- thanks for the info. I agree that a couple of those look like a reasonably affordable place to start.
re: whisper rooms and other sound booths
As someone stated, the apartment is a small one-bedroom and I'd really prefer not to have a "booth" in my smallish living room if I can avoid it. Plus, there's the expense. But if I could get one for $500 or less and set up/break down when needed, I'd consider that.
re: renting a rehearsal space
I might end up having to do something alone these lines, but I really can't afford a dedicated "studio." Even a small, secure room is pricey around here.
re: Yamaha Silent Brass System
Ha ha -- you have no idea how jealous saxophone players have been of trumpet players who can take advantage of this. I don't suspect anything like this will ever be invented for the sax-- you just can't get around the fact that the sound generates from dozen of tone holes. However, there are products that are like big pouches -- you put the sax in, and stick your hands through two holes. My teacher had one back in the 70's. They don't look like too much fun to use, though, and I don't know how effective they are.
re: Get a MIDI wind controller
As I stated earlier, I did buy the AKAI EWI (wind controller) early this year, not mainly for noise, but that's one of the benefits. In the worst-case scenario where I can't play the sax at all in my place, this just might have to be the year I become a master EWI-ist. ;-)
As someone said, it's hard to know exactly what is needed because there are so many variables -- thickness of the walls and floor, patience levels of neighbors, what time of day I play, for how long, and at what volume. I'm really just trying to stack the odds in my favor by doing what I can within reasonable financial limits. No sense in buying a $5k isolation booth when I might be able to buy a few absorption blankets, play to my heart's content, and never hear a complaint.
Thanks again!
--Nick