salzburg one day trip plan

ok so we are a group of students and arriving at 11 am and leaving late in the evening

budget is low

please give me some tips and tell me what order is the best should i add or remove smth

ok so at first Mirabell garden Palace then through the bridge to the Old Town

walking through the Mozartplatz, Residenzplatz, Getreidegasse Mozart Museum is probably boring?? Salzburg Cathedral Stiegl Brauerei?? Petersfriedhof

something authentic to eat/drink and not too expensive?? beer recs?

then Mönschberg to see the panorama, i think there also bars with opened roofs??

then THE fortress of course

closer to the evening back to the Old town+ Rudolfskai+sit near the Salzach

also i heard there’s a Streatfood Circus Festival on Hannakstraße 5 but idk if it’s realistic (too little time) or worth it

id love some live classic music/museums/any suggestions on what to do