Odd Dog
Odd Meter Ensemble
Jazz (Germany)
Odd Meter Ensemble
Groove / Jazz
 (Germany, Russian Federation)
Offshore Quintett
Ofrin "Acoustronic" Duo
(Germany)
Oh, my music! Labelnight
Ohne Frack auf Tour - Die Staatskapelle in der Neustadt
Okapia Johnstoni
Oktopuzzle
Oleg Baltaga Trio
Olga Reznichenko Quartett
Jazz (Germany, Russian Federation)
Olga Reznichenko Trio
Jazz (Germany, Russian Federation)
Olivanti I Moritz I Lauer I Gerigk
Olivanti Raineri Duo
Jazz (Brazil, Italy)
Olivanti / Gerigk / Raineri
Olivanti / Tschubenko Analog Duo
Jazz
Olivanti / Tschubenko Duo
Jazz
Oliver Klemp Band
(Germany)
Ondrej Pivec ORGANIC Quartet
Jazz (Czech Republic)
OneManArmin & Band
Hip Hop / Groove (Germany)
Open Trio
Jazz (Sweden)
Oporto
OPTIONS / 2
Orbit
Orbit Kid
Jazz / Pop (Germany)
Organ Clash
OrganClash
ORGANisation
Groove
ORGANisation MEETS
Organlogistics
(Italy)
Organtransplant
Orgelcombo der HfM
ORIAN
(Ireland)
Ornette is Back
Oswald
Other Hours - Tunes von Harry Connick Jr.