With support from Creative Scotland, in 2015, Whiteside released his debut album Dichroic Light featuring a selection of music for soloists and chamber ensembles both acoustic and with live electronics.
[11] Solo for Viola D’amore and Live Electronics, recorded by Emma Lloyd and featured on Dichroic Light, was described as having the overall effect of ‘one of meditation – a Japanese stone garden whose raked ripples have been brought into sound’.
[12] The same year he was commissioned to collaborate with artist Dominika Mayovich on When Two Worlds Collide, an interactive installation for R-Space Gallery[13] and Sound Scotland, and he scored the documentary, Michael Palin's Quest for Artemisia for BBC 4 directed by Eleanor Yule[14] and Bernd Porr's indie feature film, Anna Unbound.
[16] The same year he was commissioned by Cottier Chamber Project to compose a piece based on the work of Lord Kelvin and John Stewart Bell for Juice Vocal Ensemble, Glasgow University Chapel Choir and Davur Juul Magnussen trombone ensemble for performance in the University of Glasgow Cloisters.
[18] He was also accepted onto the RTÉ NSO/CMC composer lab to write Repercussive[19] and commissioned by the Institute of Physics for the NI Science Festival to collaborate with Marisa Zanotti on writing Entangled for string quartet, electronics and film based on the work of John Stewart Bell for and premièred at the NI Science Festival 2018 by the Aurea Quartet.