SmoothCroon 

Tengo que darle las gracias a Misty, si no fuera por ella yo no te hubiera conocido. Me encanta como suena tu voz, llevas muy bien el ritmo, y la afinacion perfecta muy bien. Un placer escucharte!!!

WOW!!I can be here the whole day listen to you.nice and smooth.

You've made a very good performance. I suppose the duet is in real time.

You can make a duet with yourself, add chorus... (I do)

You need any recording programme (I use Magix Music Maker)and record your song previously with as many voices as you like, mixing all together, adding some effects... anything.

You have to use the original karaoke of this site, recording it previously with the option "what you hear".

When you have it finished and right, you have to find the karaoke again, open it as for silencing the melody, but silence everything instead, so it stays completely muted (so the music won't sound twice!)save it, and proceed recording as usual, but running your recording of the song you recorded previously, instead of singing it.

Maybe you'll have to try a couple of times until you find the beginig right at the same time without much delay, but if you minimize both windows and have them one besides the other it's much easier!

Well good luck! Let me know if you try.