Daigasso! Band Brothers is a music video game published and developed by Nintendo for the Nintendo DS handheld game console. It was released in Japan on December 2, 2004 as a launch game for the Nintendo DS. The game features multiple songs, which include classical music, television themes, and video game music. The game is controlled using both the buttons on the DS as well as its touch screen in certain portions. It uses a variety of different instruments, which are combined selectively in order to compose a song. Besides the primary mode, players may play together, each one playing a different instrument in the song. Players may also compose their own songs. It was to be released in the United States as Jam with the Band, but was never released nor formally cancelled. It has a sequel titled Jam with the Band, which was released in Japan in 2008 and in Europe in 2010.

The Nintendo DS is a foldable handheld game console produced by Nintendo, released globally across 2004 and 2005. The DS, an initialism for "Developers' System" or "Dual Screen", introduced distinctive new features to handheld games: two LCD screens working in tandem, a built-in microphone and support for wireless connectivity. Both screens are encompassed within a clamshell design similar to the Game Boy Advance SP. The Nintendo DS also features the ability for multiple DS consoles to directly interact with each other over Wi-Fi within a short range without the need to connect to an existing wireless network. Alternatively, they could interact online using the now-defunct Nintendo Wi-Fi Connection service. Its main competitor was Sony's PlayStation Portable during the seventh generation of video game consoles.