Hey all. I posted this question back on Tuesday, and it was turning into a fairly interesting discussion when it was lost in the "great tMP server crash". So, lets start again (this is as close as I remember the original thread starter - if you can better remember my original post then let me know ). Has anyone done any research into how loud (in dB) the average brass band playing at ff actually is? Can anyone give me a rough idea of the volume level at [say] 3 feet (ie right on top of the band), 30 feet and 100 feet? I know there are all sorts of factors that affect this, from hard surfaces nearby to the density of the air at the time, but assuming no "outside" factors has anyone got any calculations / results?