HUMOUR, opera and goat costumes may seem like a strange combination but the mix had Port Fairy Consolidated pupils rolling in the aisles yesterday.The Melbourne Opera School production Figatroll was performed in front of two school groups as part of the first day of the Port Fairy Spring Music Festival.Artistic director Linda Thompson said Figatroll used the popular fairytale of the Three Billy Goats Gruff and set it to the music of Rossini's Barber of Seville. She said the group had performed at a number of schools and at the Royal Children's Hospital as part of a state tour."We have a lot of very talented performers involved in the production who are learning the ropes as opera singers," Ms Thompson said."To be a great opera singer you need a lot of live experience, just like anyone else in the performing arts, and kids are the harshest critics, they either love it or they don't."Thankfully, they've really responded to it well. Some of the Rossini scores are familiar to them through movies and the Bugs Bunny cartoons."The 20th Spring Music Festival kicked off in the seaside town yesterday with a performance of David Williamson's play Lotte's Gift. Today will see the best in classical music reverberate around the Reardon Theatre with the Tinalley Quartet and the Melbourne Chamber Orchestra both taking centre stage in two separate shows.