Audacious

Having a speed- and pitch-switcher in Audacious has loads of potential uses, one being practicing instruments or vocals alongside a song at a speed and pitch which is appropriate. However, I personally always resort to using a different tool such as PlayItSlowly because Audacious requires the song to be restarted to make any change to the pitch or speed of the song using SndStretch. This is really distracting and also seems quite unnecessary - it's a real pain when you're trying to match up keys and you can't just slide the bar around until it sounds right. I propose, therefore, that the SndStretch plugin (or some equivalent or replacement if neccessary) is made to work and be modifiable whilst a song is playing, so you can shift pitch and speed whenever you wish.