Back in 2016, Momo Corp. teamed up with Mobirix to release "Music & Beat - O2Jam", which shutdown after only six months. This year (2019), they released "O2Jam - Music & Game" which is a remake of M&B with all the stamina and microtransaction shit removed. They also removed some songs, mainly crossovers with other Korean music games (PIU, HIGH5, EZ2AC). My torrent adds those songs back to M&G.
Additionally, according to this post, the format used is the same as O2Jam U, which means O2Jam U songs could potentially be added as well. If someone else decided to upload them here they should upload them under this torrent group.

Usage:
Replace o2jamNew.app\Data\resources.assets with the one in the torrent
Put all other files into o2jamNew.app\Data\Raw\
Launch the app and enjoy

Song list:
Hidden text: Hide

    Memme - One Plus One Is Cutie
    M2U - A Bella
    Warak - COSMIC INVADERS
    TAK - TAK it
    TAK - On The Way To Her (feat.Urban Zakapa)
    E.Q.P - Blank
    seibin - PONYTAIL COCKTAIL
    SQUAR - Qoncentro ~ Shamshir ~
    M2U - Promise (feat. Sherie)
    Warak - Slow Motion (feat. Donggyeong)
    K-Run - Missing You (feat. TMDC)
    nato - Burnin’ Road
    EunoH - Wake Me Up (feat. Narae)
    seibin - VOICE (feat. Guriri)
    MADSOXX - Sejarah
    seibin - Golden Apple (feat. Kuripurin, Lielle, Narae)
    imoutolove - Sky Blue LIFT☆OFF↗
    RMHN - ELIZABETH
    M2U - Trouble (feat. Vin)
    TAK - PAE-KI
    M2U - PandorA
    STREME REVERIE - A Site De La Rue
    Memme - Doll's Garden
    ATAS - Asterios ~ReEntry~
    Houseplan - Lazy Days
    KIEN - Le Grand Bleu
    Lunatic Sounds - INFINITY
    P4koo - Far away
    P4koo - Gothique Resonance
    Roy Mikelate - Your Mind
    Ira - Harpe for GAIA
    Banya - Turkey March
    Banya - Chicken Wing
    Banya - Point Break
    Banya - Mr. Larpus
    Banya Production - DJ Otada
    YAHPP - Sorceress Elise
    Memme - Chinese Restaurant
    MAX - D
    MAX - U Got Me Crazy
    SHK - Violet Perfume
    Warak - Once Upon A Time
    Nauts - ORANGE
    Spike - I Saw The Devil (feat. Tattboy)
    O2i3 - SUPERCUTE
    a-JAE - Truth Game (feat. Loo_oo, EunoH)
    Lunatic Sounds - Devil Sanctuary
    SHK - Neo Nut Cracker
    SQUAR - Qoncentro ~ Destiny ~
    O2i3 - FLOWER:Waltz
    NICODE - Alice In Winterland (feat. Narae)



In addition to adding the 51 songs mentioned above, resources.assets in this torrent also makes all stock songs appear in Vol. 1, effectively "cracking" them for free play without subscription. Added songs will be in Vol. 2.