This is something I tell them all up front.
I am a jazz piano player who plays music in more than 2 piano bars. I more or less am a freelance musician plus go wherever I am booked to plus whatever pays decently. But the one thing that is absolutely a must-have for me is that whatever bar I play, it must have the most top quality plus new central heating plus air conditioner! Because having excellent indoor air quality and comfort is so important for me to do my job plus play to the best of my ability. If I do not have superb heating plus air conditioner I can not perform as well plus the bookers that hire me would not be cheerful with that, neither would the fans who are coming to the bar to hear me plus drink. This is why they all know ahead of time that if I am to be there, they better have their heating plus air conditioner in perfect working order. If the AC is not in perfect working order plus of the utmost top quality plus new they will right away get it fixed up before I am even stressed to be there. This is something I tell them all up front. If you want to book me, your central or commercial heating plus air conditioner must be working well plus be the entirely best so I have complete plus total indoor comfort while I perform. There was only once I can remember in recent years where the heating plus air conditioner was not working very well. I ended up quitting the gig before I even got started plus walked right out. I would rather lose the pay than be in discomfort.