For a less pricey Peterson strobe tuner with sweetener options, there is an iPhone iStrobe app (10 USD) with the guitar and bass sweetener pack (6 USD). I don't play mandolin like Floyd, but I find the sweetener setting useful for acoustic guitar. There's a setting for using a capo, too. Very cool stuff.

THANKS, Floyd! JT always had the best acoustic guitar tone, and always played as in-tune as his pitch perfect vocals. First fingerstyle tune I learned note-for-note was "Fire and Rain". It just never gets old...

Last edited by DC Ron; 12/15/25 12:43 PM.

DC Ron
BiaB Audiophile
Presonus Studio One
ASUS I9-12900K DAW, 32 GB RAM
Presonus Faderport 16
Too many guitars (is that a thing?)