Ear to the track was commissioned as a culmination to Manchester Camerata's Science of Sound project and invites children to sing and play resonant metal (junk) percussion as part of an interactive piece which explores the science behind sound and music. The work represents the three states that sound travels through - liquid, gas and solid - where smooth chains of ringing instruments, pointillistic atmospheric sounds and finally a 'solid' bass line encourage imagination and interaction. These three sections are interspersed with a short song, the lyrics of which where written by the school children during the workshops leading to this performance. Thank you to Sarah Nixon who delivered the workshops alongside myself; Lucy Geddes, Jasmine Evans and Nick Ponsillo from Manchester Camerata for suggesting and supporting this ambitious project; the musicians performing and to all the school staff and children who have welcomed us and contributed to this piece!