Coming to Tallinn for 10 days in September for work...

I am excited to check out your city! I've never been there before and am looking forward to seeing some stuff. Are there any suggestions? I can appreciate great history, museums etc... but really also want to know about some of your favorite restaurants, bars etc. Not super into nightclubs or anything, into more low-key type places like Jazz clubs, wine bars etc. Maybe I can meet a few Redditors too!