music,nature
joni mitchell,crosby stills nash & young,the rolling stones, the byrds,pink floyd,bob dylan,the beatles,the doors,santana,nick drake, john martyn, traveling wilburys,the steve miller band,arlo guthrie, fleetwood mac,sting,eric clapton,simon&garfunkel, donovan,jackson browne,jethro tull, james tayler,van morrison,leonard cohen,jimi hendrix, mark knopfler,sarah mclachlan,loggins and messina, john mayer,and many more...
documentary,history
history of art,biography