Plays the title-screen jingle: 8 successive 2-note phrases drawn from the phrase table at 40398 (PhrasePairs). Each phrase byte is a (loA, hiB) pair selecting two notes from NoteTable at 40362 (PlayNoteByIndex). The inner loop repeats each pair 8 times (so the phrase audibly trills on its 2-note interval), and the keyboard rows are polled between notes — any key press aborts playback via Music_Abort.