The Sumida Street Jazz Festival has been an annual event since 2010, and it includes a variety of free music performances at multiple venues in Tokyo's Sumida Ward. Some of the musicians participating in this year's event include Shinji Takeda, Junko Makiyama, and the Asakusa Jinta band, but the full lineup can be found on the official event website.
The two-day event also coincides with the Sumida One Coin Oktoberfest, held at the same venues. There will be around 20 craft breweries present, so you can enjoy a spot of bar hopping as you enjoy the tunes and the fun atmosphere.