In summer, the jazz club Alexanderplatz holds its concerts outdoors, in a lovely park south of the Colosseum called Villa Celimontana. Their website lists the concerts, but is otherwise quite useless. Do not attempt to buy tickets online – the computer system does not work well and there is a high likelihood your reservations will be lost. You can buy tickets to the concert at the entrance to the park (on Via Navicella near the intersection of Via d. S. Stefano) starting at 7:30 pm the night of the concert, but the gates don’t open until 9 pm. (Unless it’s a very popular concert or a Saturday night, you can probably wait until 9 to get your tickets.) The concerts begin at 10:15 pm. Seats are unnumbered, so it’s best to reserve a table and eat dinner before the show. The number for table reservations is [-], starting at 6 pm the night of the show. The food is decent and reasonably priced, and the seats have a good view of the stage. There is also a wine bar and a snack bar at which you can reserve tables or just purchase food and beverages. Be sure to put on insect repellent before you go!