I’ve personally lived in places where the closest convenience store was 2.25 km, and the grocery store was nearly 18km, as well as places where a convenience store was literally a part of my building, and grocery stores were walkable distances.

The U.S. is enormous and varied. Take a look at truesizeof and compare the U.S. and Europe (don’t forget to add Alaska and Hawaii - they won’t be included in the contiguous states). Consider how different London is from rural Romania.

Are they Bluetooth headphones? If so, check the protocols supported by your phone, and by the headphones, e.g. aptX vs LDAC vs SBC. It’s possible that it’s not a “downgrade” on the new phone, but rather an upgrade to a better protocol, but unfortunately not one compatible with your headphones, so you end up using a low quality fallback.

You may also want to check your settings, and see if you can select a specific protocol. Sometimes a lesser protocol is chosen by default, if the better protocol uses more battery. This may be available to you in the phone settings, or as an option in an app for the headphones (e.g. my Anker Soundcore app allows choosing between two protocols).

I think that applies to the others as well, except in some cases when they are tuned to the same fundamental, e.g. Bb Trumpet, BBb Tuba. But tubas commonly come in C, F, and Eb as well (trumpet variants also exist, but are less common).

Because of the rotary valves and trigger? Or for some other reason?

If that’s the only difference you’re calling out, it’s worth noting rotary valves and triggers show up on other instruments as well. In particular, tubas often have rotary valves, and it’s not uncommon to see trigger valves on trombones.

Having played both piston valves and rotary, the difference is negligible.

Not sure what landscape features you’re looking for, but I’ve been pretty happy with Voyager. I switched from liftoff/jerboa after lemmy.ml took the 0.19 update and they broke. It’s been good enough that I think even if the others hadn’t broken, I’d still choose Voyager over them.

This is approximately what I do as well, and would highly recommend. The one caveat I would add is while you are researching things you might want to do, take note of the subset of things you most want to do, and make sure you know what days/times they are open, if you need to book in advance, etc. I am very against having a hard schedule, but I also don’t want to travel somewhere only to miss the one thing I was really looking forward to because I decided “I’ll do that tomorrow,” only to find out it was closed the next day.

An additional pro-tip: Make your first list of things you might want to do ahead of time, and name it after the place you are going, e.g. “New York.” Then while you’re traveling, make a second list of “favorites”, e.g. “New York Favorites.” Keep track of all the restaurants, activities, view points, etc that you enjoyed using that second list. Then whenever someone asks for recommendations for a particular location, you can just send them your favorites list.