I am so confused about note durations in guitar. I know what note duration is. In guitar, if i play the low E string, it vibrates for a long time(sustain). I have no problem with the fretted notes because I can mute it by lifting my finger off. I see players that doesn't mute and it makes the solo sound rich but sometimes it is unwanted. If one note is played and the next is played, does the second note cancels out the first note?