The bright notes of a xylophone are read as playfulness and childhood lightness. Stepping along its bars from low to high stands for small steps taken one after another.
Does the traditional reading fit your dream, or did it mean something else to you?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.