I am trying to play this on the guitar
I am having difficulty understanding the 4th measure in the picture below. It looks like I have to play a G chord without the 5th (D is missing) and then, silence the middle G string while playing an F note on the D string.
But how do I check if my sound is right? I tried to enter this score into a score writing application (Finale) but did not succeed.
If you play the low G with finger 3 (L.H.) you can then play the F on the D string with finger 4. If you play the F with what I call "lazy technique", by putting the fourth finger on slightly flat, it will touch the open G and stop it ringing. While you do this you keep the third finger pressed down on the low G.
To be honest though, it doesn't matter if the open G rings on over the F, as it is still part of the overall harmony, a G7 chord, so it won't sound dissonant. If you do stop the open G it will give the inner part more definition, though, and make it sound like a line, rather than just part of the harmony.
From how I understand it, you play the G(low)-G(middle)-B chord (G major without the 5th) and keep it for half the measure, and then change the middle G to F, pretty much like you said.
You don't 'silence' it, but you keep it for a shorter duration; while you keep the low G and B for 2 beats, you keep the middle G for only 1 beat, then change it to F, which is also kept for 1 beat.
