Let's Say that you are in a service and you are playing a song and they ask you to go up to another key. Now you have never played the song in another key, so what are some good tips to transpose a song on the spot. I thought on some instances if you just remeber what chords you were playing in the orignal key just think of the next chord up when you get to that part of the song. If you were playing the chords c, d, e when you go up and you get to the c chord part of the song think C#,e, f. I know this is a bad and maybe a difficult way to transpose but what are you all's positon on transposing particulary on the spot.