I think, don't quote me on it, that on Spotify if you go back one song and the song has been playing for 3 seconds or less, you will only need one click. But if it's being played for more than 3 seconds you will need 2 clicks. I'm not sure if this is the same on mobile but I just tested it on my computer. With this, you could check the time the song has been playing and click the required number of times. Let me know how it goes!