Classical music is an art that deals, at least publicly, with big spans of time, which goes for traditional forms like the symphony as well as for newer ones like free improv. Miniaturists have tended to work in domestic, even private genres: madrigals, songs, keyboard pieces. The art of saying as much as you can in as small a space as possible is an admirable skill. I wouldnt necessarily say its a greater challenge than expansivenessbut as a composer whose longest work ever clocks in at an epic 22 minutes (for four movements), Im sympathetic to artful brevity. Tonight, over 50 local artistspoets and dancers, too, not only musicianswill show what they can do, by themselves, in 60 seconds as they perform One-Minute Solos on a benefit for the Seattle Improvised Music Festival, Feb. 8-17. (Now try imagine a Seattle Symphony concert comprising 50 one-minute pieces for full orchestra: thatd be cool.) Good Shepherd Chapel, 4649 Sunnyside Ave. N., gschapel.blogspot.com, www.seattleimprovisedmusic.com. $5-$15. 8 p.m.