Guru
Joined: 11/02/2018
Location: AustraliaPosts: 3348
| Posted: 09:53pm 04 Dec 2025 |
As far as I can see RTTTL can only play one note at a time (monophonic ringtone) but most of the tracks on the original Christmas Bells unit can play two notes at a time and some up to four.
I imagine a modified RTTTL could accept an interval of 0 to indicate more than one note at a time.
eg. in the line below ,0B,0C,D, would indicate B, C & D are to be played together for 353mS.
Data "8C6,C6,B,0B,0C,D,8B,8B,B,A,A,B,2A,2D6"