Firstly I wanna give you some advices about as you can write this correctly..
Cual es la diferencia entre las dos oraciones?
This is the way more correct that you can use.
In second answer for you.
You can say the following.
I want to play my guitar today.
Quiero tocar mi guitarra hoy.
I have wish to play my guitar today.
Tengo deseos de tocar mi guitarra hoy.
I desire to play my guitar today.
Quiero tocar mi guitarra hoy.
Really I need to play my guitar today for dedicate one s
ong to my girlfriend.
This last one was one suggestion.
