“Myths and Magic” continues the MSO’s tradition of programming January’s concerts with a program of shorter and more accessible pieces to encourage audiences of all ages to attend as a family. The title springs from the nature of the pieces as each work in the program casts a spell. The Finnish composer Jean Sibelius conjures an ancient tale in the “Swan of Tuonela,” a piece that will showcase the English horn mastery of the MSO’s Billie Jo Brito. In “Passacaglia: Secret of Wind and Birds,” Chinese composer Tan Dun includes passages where orchestra members sing and the audience calls up bird songs on their cell phones. The nineteenth-century composer Engelbert Humperdinck suggests the shadowy woodlands of Grimm’s fairy-tales in his noble overture to “Hansel and Gretel.” With “The Sorcerer’s Apprentice” by Paul Dukas, we are reminded of Mickey Mouse’s overwhelming escapades with brooms and buckets in Disney’s “Fantasia.” The concert concludes in Middle Earth with a selection from Howard Shore’s soundtrack for “The Lord of the Rings.” Tickets are free for anyone 25 and under.