Finally, something this week for our Windows readers (lest you think my PC was eaten by a Tiger): the bargain-basement guitar amp software continues this week with GXStack, which includes 6 amp models with reverb, delay, and timbral controls for an intro price of US$39.99. The sound samples sound terrific and they promise it’s easy on your CPU, too, but don’t believe them — try the demo download. Let us know what you think, and I’ll, um . . . go learn how to play guitar?