I've been writing a sort of cinematic music for 35 years. Had a brief spell as a record producer getting Coldplay into the charts was the highlight before settling down to write music for Production libraries.
Largest success so far has been 'The Farmer" a 3 minute piano piece licensed to world leaders in production music Extreme Music. The piece has been used for adverts for EDF. Top Gear, Johnsons and many others.
I have over 60 pieces licensed by 4 different licensing companies.