Two things to consider:
first, there is already a term in poetry that refers directly to drone, burden.It even derives from the French bourdon, a staff; or a pipe made in the form of a staff. So drone in music refers to the bass in some musical instruments, and the pipe or part that plays it, is found in pipes and strings in instruments as diverse as the bagpipe, sitar, hurdy gurdy, sarod, sarangi, rudra veena and the pedal point in an organ. From this root burden came to refer to a part of a song that is repeated at the end of each stanza, i.e. the chorus or refrain. And this repetition maintains its interest to the formal poet.
second, modern dronescape is rich with poetic possibility. Its use and emphasis of sustained or repeated sounds, notes, or tone-clusters. Its often colloborative and experimental nature. Its improvisation. All can be explored when the voice becomes another drone. And this is happening (check out how Droneshift 2011 includes voice improvisors among its participants) and we would like to hear more about its current practice from you.
More here: http://folktek.blogspot.com/2010/07/drone-scape.html and http://www.facebook.com/events/186497024756643/.