How to Prevent Unwanted Muffling of the Strings While Playing

As much as possible we should make each finger be perpendicular to the fretboard. When you hold the strings down as in applying extra pressure, the tendency of your finger is to curve and thus enable you not to mute the strings lying underneath that finger. Advanced players use to mute the strings by damping the palm of the right hand on the strings while enabling other strings to sound clearly, but this too can unintentionally happen in most of those beginners. Whether one is left handed or right handed player make sure that the palm of hand strumming the strings is suspended above the bridge and the strings.Its advised to hold the guitar in a perpendicular position so that the moment your hand execute some chords the fingerboard its not inclining in near position of the palm.Also for a more easy playing, make the guitar fret board a little inclined upward going near you so that the palm edge beneath your forefinger will not touch the lower strings that cause it to mute especially when you're playing an E, E7, Em, Am or C chord. When playing a simple A & D chords, always watch your third finger as its tendency is to touch the lower string beneath it causing that string not to sound clearly or not to sound at all. This part is often unintentionally done by beginners who usually think that upon achieving right finger position they will think that all strings are sounding but the truth is it don't. So always see to it that the lowest string is not being muted by the third finger. The third finger has always the unwanted  tendency to make a straight finger position thus muffling other strings in the process. Applying pressure on it enable the finger to curve thus keeping it from touching the string under it.