Henry Meets a mermaid

Henry meets a mermaid is the 2 hour special of the series 
in it Lincoln and Henry meet mermaids through songs
==Plot ==
Henry is at the shed sleeping one morning he awakens to a bright and sunny canterlot/ Sodor day, singing that he's certain today is going to be perfect.During his song, he wakes up Spike (who goes right back to sleep) and passes by numerous ponies and engines around town, including the Quills and Sofas store owner, who previously appeared in Owl's Well That Ends Well. As his song reaches its climax, he backs up to some express coaches and pulls them 
Henry is waiting at a station when he hears a noise it sounded like a vocal chord he wanted to hear it but his driver won't let him, knowing that the Fat Controller would be cross if they fell behind schedule by hearing a vocal chord
Then He was at a signal waiting for it to change he hears the vocal note again it causes him to float into the air 
the girls become even more distrustful of her.