Previous blog entry made me ask myself another similar question: why not just take a bass instead of a 9 string guitar? This video perfectly shows the difference.
Great job. You can see that guitarist and the bassist are playing in unison. But sound of instruments is different even if you apply the same tone.
On video uses guitar Schecter Hellraiser C9 and some bass (they are not much different). Scale length of this guitar is 28 inches (baritone), scale length of bass is 35.5 inches. This implies using a different strings set. That is, for these reasons, oscillations (and, as a consequence, the timbral coloring) will be very different. Also pickups construction is slightly different. Therefore, pedals or processors always indicate for which instrument they are intended. I even saw a pedal specifically for extended range guitars or with a dropped tuning (Ibanez 7th heaven).
Well, this is not a review, so we'll finish this.
