leenia ,
I meant something else,I am very well acquainted to listening to other musicians.
you are assuming that a guitarist is playing in standard tuning,you are also assuming that a guitarist in standard tuning is not using modal chords.
if a guitarist is not playing thirds in his chords,the guitarist ET thirds will not be there to guide you.
more and more guitarists are using modal chords[without the thirds]in both standard tuning and in open tunings,when accompanying trad music,in fact to a limited extent I sometimes to do this on the concertina,although occasionally Ilike it.
finally all rock music is not awful,it may be too loud,but some of it is good,and some of it shares the same mode as flamenco music.