Too bad I wasn't able to be there and meet you once again... Anyway, you took quite a nice sightseeing but you also missed some great places - maybe next time I will be able to show it to you by myself :)

Oh, and btw - this "small guitar festival" as you named it was, in fact, the trial before beating Guinness World Guitar Record. This is an annual event in Wrocław and this year song "Hey Joe" by Jimi Hendrix, was played together by 7411 guitarists :)