Bandai Namco supported Drum ‘n’ Fun with extensive post-launch content. The base game features over 70 tracks, but the total library expands exponentially when adding the following:

TAIKO NO TATSUJIN: DRUM'N'FUN! | Official Website (EN) - Bandai Namco

What you prefer (Anime, Vocaloid, Classic, or Gaming)?

Users download the specific .nsp or .xci DLC asset files corresponding to the game’s specific Title ID (which varies between Japanese, North American, and European releases).