If you’re looking for something a little different, but very authentic try swinging over to Alexanderplatz- Rome’s most auspiciously funky jazz club. The candle lit white-washed walls and cellings are covered with signatures of various Roman, Italian, and international jazz acts creating a very cosy-cool atmosphere.
This is basically the place to come to hear major jazz acts in Rome, and if there's a big act playing you'd be well advised to make a booking (tel. 06.39742171).
Alexanderplatz is organised into several small rooms, each with cosy seating for 2-8 people, arranged around a central ground level stage. You can even choose to sit up on the balcony area where you get some great acoustics. Waitresses bring you your drinks or there's a bar with standing room only if you prefer.
There's a great wine list and they also do some food- in fact Alexanderplatz operates as a restaurant as well serving some pretty simple dishes and light suppers.
One of the best things of all is the people who come here: Romans, ex-pats, and travellers all bunched together and no attitude from them or the staff. Just people coming together to drink some Frascati and listen to the music.