Thank you everyone for your help!!, i am finding these recomended
books and the web site. Another question about comping and struming
for example :

i have two bars of a the same chord

|A7 |A7 |

my style of strumming in 4/4 is

firts bar: first beat bass of the chord,second beat strum the rest of
the chord, third beat bass , fourth beat strum the rest of the chord
Second bar: first beat bass of the chord, second beat strum rest of
the chord,
what can do in third beat and fourth beat ? of this bar ??
for do not repit the same that the first bar.

thanks in advance!!


Jorge