Expose spectrum() instance method, pass dance instance as  in section callbacks
Expose spectrum() instance method, pass dance instance as  in section callbacks

modulexcite/dancer.js,suryasingh/dancer.js,hoboman313/dancer.js,hoboman313/dancer.js,suryasingh/dancer.js,kyroskoh/dancer.js,ngokevin/dancer.js,modulexcite/dancer.js,jsantell/dancer.js,ngokevin/dancer.js,kyroskoh/dancer.js