In 2012 three films were released that he scored: Robert Sarkies's Two Little Boys, Alyx Duncan's The Red House and Dan Salmon's Pictures of Susan (a feature documentary).
Between 2009 and 2011 he created the music for the Weta Workshop children's series The WotWots (78 episodes) which has screened in over 100 countries.
In 2010 he scored Ice, a mini-series for the UK's Power TV (starring Richard Roxburgh and Sam Neill).
For the 2011 Auckland Arts Festival, he composed the music for Wright's dance show Rapt which toured to the Netherlands in 2013.
Long was a founding member of the seminal New Zealand band The Mutton Birds with whom he made 3 albums over 7 years.
He has produced many albums for a wide variety of artists including Dave Dobbyn’s Available Light (2005), two albums for Barry Saunders, Red Morning, (2005) and Zodiac, (2009), Lucid 3's Dawn Planes (2007) and Leila Adu's Cherry Pie (2006).
He won Producer of the Year at the 2002 New Zealand Music Awards for Fur Patrol’s Pet.