The Class 17 Claytons were never allocated to Newton Abbot depot, but mainly stayed in the Scottish and North Eastern region. As for the song, wiki says 'In the Thomas the Tank Engine and Friends TV Series, a character based on this class appears by the name of Derek, with the problems inherent to the class incorporated into the character and his sole episode' so it might be the Thomas theme tune or something by Derek B?
I am not sure about it. use cbd for pain It might be the Thomas theme tune song that is referred to in most of the live versions of NDA. I'm am not familiar with it. The characters of the episode are incorporated with it. So this might be the song.