I’ve heard this from a number of places.
Certainly there is a time in your practice room to just try stuff…
But mostly you don’t sing what you don’t hear in your mind first.
In other words…you don’t wing it…
You got 2 things you need to practice…
1) Musicianship
2) Muscle Memory
Musicianship is how you get your songs to sound like the singers you are trying to emulate.
It is the rhythm…
Volume…
Style…
All in the context of a song…
I am finding more and more that you can do a lot of Guitar Playing with just a few chords.
The first 3 chords I learned on the Guitar through Justin Sandercoe’s method were these there chords:
I later found out that these are the three major chords that one plays when they are playing in the key of A.
these are the I, IV, and the V