The 'ES' stands for 'Electric Spanish', 'T' for 'Thinline' and 'D' for 'Double-Cutaway'. Overall, the Gibson ES-335 stands for quality. Still in production, vintage ES-335s are highly collectible fetching upwards of $40,000.
The construction of the ES-335 was innovative in that, in the 1950s solid body electric guitars were becoming increasingly popular due to their sustained tone and resistance to feedback, yet hollowbodys possessed a tonal warmth.
So Gibson realised this perfect mix of the two. The ES-335 was built from a 16" (40cm) wide, 1 3/4" (4cm) thick hollow maple body with a solid maple stock in its centre.
The semi-solid, double-cutaway build meant its mahogany neck with its rosewood fingerboard could be joined to the body at the 19th fret allowing access to the uppermost registers.
A multitude of timbral sounds could be achieved courtesy of 2 humbuckers, controlled by a 3-way switch.
Still being made today, the Gibson ES-335 offers it all - the warmth of a hollow body with the sustain and resistance to feedback of a solid body.

There are no hard and fast rules about how songs or chord progressions can be composed but if you select chords from the same key they will always fit. Below is an example chord progression using chords in the key of C major:
The plectrum should extend only just beyond the fingertip. If too much of the plectrum is on show
This technique has a number of benefits. First of all, it minimise the unpleasant "fretbuzz" sounds that can occur. Fingering at the edge of the fret also reduces the pressure required, meaning you're able to play with a lighter and more fluent touch.