I am referring to figuring out how to use an intro so that everyone in the jam session knows when the music is supposed to start. For example “potatoes” works but how do you know what strings/notes to use. Do you use the first chord of the song and do potatoes of that chord?? Any suggestions? I know sometimes people will use a phrase from the end of the song to use as an intro. Right now we just count ourselves in, but it would be nice to have another means to get the song rolling without just starting it and having everyone scrambling to catch up and get along. Thanks for your help in this.