9 Months Ago, Zergwatch says (in Halo Wars Soundtrack Album Review)  NJ
Composer Stephen Rippy has previously done music for Ensemble’s Age of Empires III and Age of Mythology games. With Halo Wars, Rippy has successfully captured the spirit of what Halo music is expected to sound like, while adding his own touches. ...

And g4tv.com says (in Halo Wars Soundtrack Album Review)  CA
Composer Stephen Rippy has previously done music for Ensemble’s Age of Empires III and Age of Mythology games. With Halo Wars, Rippy has successfully captured the spirit of what Halo music is expected to sound like, while adding his own touches. ...

11 Months Ago, GamePlasma says (in Halo Wars Soundtrack To Be Released)  Virginia - Jan 15, 2009
The music was composed by Stephen Rippy (Age of Empires series, Age of Mythology) with performances by the FILMharmonic Orchestra and Choir Prague. ...

And WorthPlaying.com says (in 'Halo Wars' (X360) Original Soundtrack Announced & Dated) Halo Wars' (X360) Original Soundtrack Announced & Dated
 CA -
The music was composed by Stephen Rippy (Age of Empires series, Age of Mythology) with performances by the FILMharmonic Orchestra and Choir Prague. ...