Despite what the title suggests, this couple of games are played like Taiko games, rather than regular Im@s titles (as the rather inconspicuous 'Presented by Taiko no Tatsujin' on the bottom would suggest). Released in conjunction for The iDOLM@STER's 10th Anniversary, these are the first titles in a long time to mainly feature songs from a single music genre (Game Music), all of which...you guessed it, coming from the Idolm@ster series.
The two games play like any Taiko no Tatsujin title, featuring the usual Play mode and a signature mode called the Live Festival (ライブフェスティバル), in which players can try out sets of consecutive songs based on certain idol formations. One big aspect of the Must Songs games is the customization aspect, which deepens the player's interaction with the Idolm@ster universe's featured idols by both in-menu touch-based interactions and audio/visual customization elements with colored light-sticks for the spectators, alternative song versions for many group Idolm@ster tracks and even Taiko avatar suits to make the Taiko avatar sound like one of the 765 Pro studio idols! The main Taiko brother playable in the game changes in between games, with the usual Don-Chan appearing in Red Album and Kat-Chan starring in Blue Album.
While both games retain the same features and key aspects, the song selection in the two versions are different; more specifically, Red features songs from the first generation of games/media in the Im@s franchise (the original arcade/console game, Live For You!, SP and the Master Artist/Master Special soundtrack albums), while Blue has songs from the '2nd Vision' generation, featuring games and media from 2010 to this day (Im@s 2, SHINY FESTA, ONE FOR ALL, Dearly Stars, the Master Artist 2 soundtrack albums and tracks from the Anime series/movies). The games also feature extra songs that were either made for special events (such as the Taiko x Im@s 2015 arcade collaboration event) or were specifically made for those two games.
Live Festival mode
Producer Notes
| Red Album | Blue Album | |
| No. of songs | 40 | 40 |
 No. of secret songs | 13 | 13 |
 No. of songs with Ura (1P) | 6 | 6 |
NOTE: The songs in both games are grouped by their first appearance in Idolm@ster-related media between the games, soundtracks and Anime movies/series.
For the sake of this song list page, the games' tracks are grouped in two separate grids for the two titles, with their debut Im@s media and/or in-game genre being included as the song's subtitle, much like all the previous appearance of Idolm@ster songs in Taiko games of the past.
Red Album
| Title |  |  |  |  |
|---|---|---|---|---|
 THE IDOLM@STERThe Idolm@ster (Arcade) | x3 | x4 | x4 | x8 (video) |
| THE IDOLM@STER The Idolm@ster (Arcade) | - | - | - | x8 (video) |
| Positive! (ポジティブ！) The Idolm@ster (Arcade) | x3 | x4 | x5 | x7 (video) |
| Agent Yoru o Yuku (エージェント夜を往く) The Idolm@ster (Arcade) | x4 | x4 | x5 | x7 (video) |
| Ohayou!! Asagohan (おはよう！！朝ご飯) The Idolm@ster (Arcade) | x2 | x3 | x5 | x8 (video) |
| Mahou o Kakete! (魔法をかけて！) The Idolm@ster (Arcade) | x3 | x3 | x4 | x7 (video) |
| Mahou o Kakete! (魔法をかけて！) The Idolm@ster (Arcade) | - | - | - | x6 (video) |
| GO MY WAY!! The Idolm@ster (Console) | x3 | x3 | x4 | x8 (video) |
| GO MY WAY!! The Idolm@ster (Console) | - | - | - | x7 (video) |
| relations The Idolm@ster (Console) | x3 | x5 | x6 | x8 (video) |
| Watashi wa Idol♥ (私はアイドル♥) The Idolm@ster (Console) | x4 | x5 | x6 | x8 (video) |
| I Want MASTER ARTIST | x3 | x5 | x6 | x8 (video) |
| Kirame Kirari (キラメキラリ) MASTER ARTIST | x3 | x4 | x6 | x9 (video) |
| Kirame Kirari (キラメキラリ) MASTER ARTIST | - | - | - | x9 (video) |
| Furufuru Future☆ (ふるふるフューチャー☆) MASTER ARTIST | x3 | x4 | x5 | x7 (video) |
| Meisou Mind (迷走Mind) MASTER ARTIST | x3 | x4 | x6 | x8 (video) |
| Me ga Au Toki (目が逢う瞬間) MASTER ARTIST | x2 | x5 | x5 | x8 (video) |
| Start→Star→ (スタ→トスタ→) MASTER ARTIST | x3 | x4 | x4 | x8 (video) |
| Tonari ni... (隣に･･･) MASTER ARTIST | x2 | x2 | x4 | x4 (video) |
| Futari no Kioku (フタリの記憶) MASTER ARTIST | x2 | x3 | x3 | x5 (video) |
| Kosmos, Cosmos MASTER ARTIST | x3 | x4 | x5 | x8 (video) |
| Ippai Ippai (いっぱいいっぱい) MASTER ARTIST | x2 | x4 | x4 | x6 (video) |
| Sora (空) MASTER ARTIST | x3 | x4 | x4 | x6 (video) |
| shiny smile The Idolm@ster LIVE FOR YOU! | x3 | x4 | x4 | x8 (video) |
| shiny smile The Idolm@ster LIVE FOR YOU! | - | - | - | x7 (video) |
| Do-Dai The Idolm@ster LIVE FOR YOU! | x4 | x5 | x5 | x7 (video) |
| my song The Idolm@ster LIVE FOR YOU! | x1 | x2 | x5 | x7 (video) |
| Colorful Days (12 Colors) The Idolm@ster SP | x3 | x4 | x5 | x6 (video) |
| Overmaster (オーバーマスター) The Idolm@ster SP | x4 | x6 | x7 | x8 (video) |
| Overmaster (オーバーマスター) The Idolm@ster SP | - | - | - | x9 (video) |
| L・O・B・M MASTER SPECIAL | x3 | x4 | x6 | x8 (video) |
| Otome yo Taishi o Idake!! (乙女よ大志を抱け！！) MASTER SPECIAL | x3 | x4 | x5 | x7 (video) |
| Genki Tripper (ゲンキトリッパー) MASTER SPECIAL | x3 | x5 | x6 | x7 (video) |
| Reimei Starline (黎明スターライン) MASTER SPECIAL | x3 | x6 | x7 | x8 (video) |
| livE MASTER SPECIAL | x3 | x4 | x4 | x8 (video) |
| Next Life MASTER SPECIAL | x3 | x4 | x7 | x10 (video) |
| arcadia MASTER SPECIAL | x4 | x5 | x6 | x9 (video) |
| ALRIGHT* MASTER SPECIAL | x3 | x5 | x5 | x8 (video) |
| Flower Girl (フラワーガール) MASTER SPECIAL | x3 | x4 | x4 | x8 (video) |
| Mythmaker MASTER SPECIAL | x3 | x5 | x6 | x8 (video) |
| Jitensha (自転車) MASTER SPECIAL | x3 | x3 | x4 | x8 (video) |
| Shocking na Kare (ショッキングな彼) MASTER SPECIAL | x4 | x5 | x5 | x8 (video) |
| L'isola (リゾラ) MASTER SPECIAL | x3 | x5 | x5 | x8 (video) |
| Town ～Must Mix～ Red Album EXTRA | x2 | x3 | x3 | x7 (video) |
| Kamisama no Birthday (神さまのBirthday) Red Album EXTRA | x3 | x4 | x4 | x7 (video) |
| Ai MUST GO! (アイ MUST GO!) Red Album EXTRA | x3 | x3 | x3 | x8 (video) |
Blue Album
| Title | | | | |
|---|---|---|---|---|
| THE IDOLM@STER 2nd-mix The Idolm@ster 2 | x3 | x4 | x5 | x8 (video) |
| MEGARE! The Idolm@ster 2 | x3 | x4 | x4 | x7 (video) |
| The world is all one!! The Idolm@ster 2 | x3 | x4 | x5 | x6 (video) |
| The world is all one!! The Idolm@ster 2 | - | - | - | x8 (video) |
| Kyun! Vampire Girl (きゅんっ！ヴァンパイアガール) The Idolm@ster 2 | x3 | x4 | x5 | x6 (video) |
| Little Match Girl The Idolm@ster 2 | x3 | x5 | x6 | x8 (video) |
| SMOKY THRILL The Idolm@ster 2 | x3 | x4 | x6 | x8 (video) |
| Nanairo Button (七彩ボタン) The Idolm@ster 2 | x3 | x4 | x6 | x7 (video) |
| Honey Heartbeat ～10 Stars Mix～ The Idolm@ster 2 | x3 | x4 | x7 | x9 (video) |
| Honey Heartbeat ～10 Stars Mix～ The Idolm@ster 2 | - | - | - | x10 (video) |
| Alice or Guilty The Idolm@ster 2 | x4 | x5 | x5 | x8 (video) |
| START!! MASTER ARTIST 2 | x3 | x4 | x5 | x8 (video) |
| TRIAL DANCE MASTER ARTIST 2 | x3 | x5 | x5 | x8 (video) |
| Day of the future MASTER ARTIST 2 | x3 | x4 | x5 | x9 (video) |
| tear MASTER ARTIST 2 | x3 | x4 | x5 | x7 (video) |
| Nemurihime (眠り姫) MASTER ARTIST 2 | x2 | x3 | x4 | x6 (video) |
| Kazahana (風花) MASTER ARTIST 2 | x3 | x4 | x4 | x7 (video) |
| Nando mo Ieru yo (何度も言えるよ) MASTER ARTIST 2 | x3 | x4 | x5 | x7 (video) |
| Gemmy (ジェミー) MASTER ARTIST 2 | x3 | x5 | x5 | x8 (video) |
| Smile Taisou (スマイル体操) MASTER ARTIST 2 | x3 | x5 | x6 | x8 (video) |
| DIAMOND MASTER ARTIST 2 | x3 | x4 | x5 | x7 (video) |
| YOUou MYshin! (YOU往MY進！) MASTER ARTIST 2 | x4 | x5 | x7 | x8 (video) |
| LO♥VE♥LY♥ (ラ♥ブ♥リ♥) MASTER ARTIST 2 | x4 | x5 | x6 | x7 (video) |
| LOVE Order Maid (LOVEオーダーメイド) MASTER ARTIST 2 | x3 | x4 | x4 | x6 (video) |
 READY!!TV Anime | x3 | x4 | x5 | x6 (video) |
| CHANGE!!!! TV Anime | x3 | x5 | x6 | x7 (video) |
| Jibun REST@RT (自分REST@RT) TV Anime | x3 | x4 | x4 | x7 (video) |
| Jibun REST@RT (自分REST@RT) TV Anime | - | - | - | x9 (video) |
| Promise (約束) TV Anime | x1 | x2 | x5 | x6 (video) |
| MUSIC♪ The Idolm@ster SHINY FESTA | x4 | x4 | x6 | x6 (video) |
| MUSIC♪ The Idolm@ster SHINY FESTA | - | - | - | x8 (video) |
| edeN The Idolm@ster SHINY FESTA | x3 | x5 | x6 | x8 (video) |
| Vault That Borderline! The Idolm@ster SHINY FESTA | x3 | x5 | x5 | x7 (video) |
| Visionary (ビジョナリー) The Idolm@ster SHINY FESTA | x3 | x5 | x6 | x8 (video) |
| M@STERPIECE Movie Anime | x2 | x3 | x4 | x6 (video) |
| Nijiiro Miracle (虹色ミラクル) Movie Anime | x3 | x4 | x5 | x7 (video) |
| ONLY MY NOTE The Idolm@ster ONE FOR ALL | x3 | x5 | x6 | x6 (video) |
| Accelerator (アクセルレーション) The Idolm@ster ONE FOR ALL | x4 | x5 | x6 | x8 (video) |
| Accelerator (アクセルレーション) The Idolm@ster ONE FOR ALL | - | - | - | x10 (video) |
| “HELLO!!” The Idolm@ster Dearly Stars | x3 | x4 | x5 | x8 (video) |
| Thinking ～Must Mix～ Blue Album EXTRA | x5 | x6 | x7 | x8 (video) |
| Thinking ～Must Mix～ Blue Album EXTRA | - | - | - | x10 (video) |
| We Have A Dream Blue Album EXTRA | x3 | x4 | x6 | x8 (video) |
| Machuike Prince (待ち受けプリンス) Blue Album EXTRA | x3 | x5 | x5 | x9 (video) |
| IDOL POWER RAINBOW Blue Album EXTRA | x3 | x4 | x4 | x6 (video) |
| Majide...!? (マジで…!?) Blue Album EXTRA | x3 | x5 | x6 | x8 (video) |
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