Here at the house I've been comparing washers, getting ready to replace a dead one. You can select machines from the list and print out sheets with comparisons down the line of all sorts of features, everything from the weight, the energy use, the type of tub, RPMs, the number of settings, water temperature, and more. Too bad there isn't a comparable system to use to evaluate the number of features of some of these songs. :) Vocal range, skill level (difficulty), speed, emotional temperature such as drama and pathos, popularity, etc.

SRS