The buzzing tone is always there for me too, sometimes it scans like ewok mentioned, other times its focused in one place, sometimes drawing my attention to a problem area, either emotionally or physically. I think it's like being given a scan to make sure you're ready to handle the depth of the experience. I remember one journey, a friend had given me a healthy dose of spice he'd extracted from P. Viridis sandwiched between some changa. It was one of the strongest experiences I've ever had, very fire oriented (artwork in the room and previous experiences synching up with the heavy trip methinks). During the experience, that crescendo of sound, which to me occurs from inhalation to liftoff, and sometimes throughout, depending on the experience, occurred nine times (this was a synchronicity in itself, my numerology life path number and mayan sign tone equating to 9). Each time, the bodyload was so intense, I was unable to let myself push through into hyperspace.. its like I sat there at the edge of the wormhole, circling around it for eternity. I know there was some fear involved, not even my first experience was -that- intense. Id also like to ask, before I ramble off-topic, if many of you have experimented with background music for spice voyages? My first and also several others were accompanied by music. In most cases, this was an extremely beneficial process.. I'll never forget the one and only time I tried to trip with metal.. ack. Got spanked very hard for that one, heh.