A cymbal crash is traditionally read as a sudden climax or an announcement impossible to ignore. Dream books link it to a moment of shock, or a feeling that wants a dramatic release.
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.