Peterson Tuners: The Story Behind Sweetened Tunings (and Why They Matter)

If you've spent any time around working guitarists, you've probably heard someone mention their Peterson tuner in the same reverent tone usually reserved for a favorite amp or a well-broken-in guitar. There's a reason for that. Peterson isn't just another tuner brand — it's the standard that the rest of the industry gets measured against, and we're proud to be an authorized Peterson dealer here at ECG Music.

A Company Built on Precision, Since 1948

Peterson Electro-Musical Products got its start in Illinois back in 1948, founded by Richard H. Peterson. The company's roots are actually in organ tuning — exacting, mechanically-driven precision work where "close enough" was never good enough. That obsession with accuracy carried straight into the guitar world when Peterson introduced the Model 70 in 1964, widely regarded as the first commercially available handheld electronic tuner for musicians.

From there, Peterson became the name synonymous with strobe tuning — a technology that reads pitch far more precisely than a standard needle or LED tuner. Today's Peterson tuners are accurate to within 0.1 cents (a tenth of a semitone), which is why touring and session musicians have relied on them for decades. The company celebrated its 75th anniversary in 2023 — a milestone very few musical instrument companies ever reach.

What Makes Sweetened Tunings Different

Here's the thing most players don't realize: standard equal-temperament tuning, the kind almost every tuner defaults to, is a mathematical compromise. It's not actually "perfectly in tune" for how a real guitar, bass, or other instrument actually behaves — string tension, intonation quirks, and the physical geometry of an instrument all introduce small inconsistencies that a generic tuner can't account for.

Peterson's Sweetened Tunings™ solve this. Each Sweetened Tuning is a set of tiny, precisely calculated cent offsets — slight deviations from standard equal temperament — developed specifically for how a given instrument actually sounds when it's played, not just how the math says it should measure. The result is a guitar, bass, banjo, or mandolin that sounds more in tune with itself, with cleaner chords and less of that subtle beating or dissonance you get from a "technically correct" but sonically imperfect tuning. Peterson's modern tuners include anywhere from 50 to over 100 of these presets, covering everything from standard 6-string guitar to 7 and 8-string instruments, baritone guitars, basses, and popular alternate tunings.

The visual pattern below is what a Peterson strobe display actually looks like in action — each ring corresponds to a different octave, and when a note is perfectly in tune, that ring holds perfectly still instead of rotating. It's a fundamentally different (and far more precise) way of reading pitch than a standard needle or LED tuner.

It's not a gimmick — it's the reason so many professional players won't tune up with anything else.

Which Peterson Tuner Is Right for You?

We carry the current Peterson lineup, and each one fits a slightly different setup:

• Peterson StroboClip HD — the clip-on classic. Compact, easy to grab-and-go, and brings full Peterson strobe accuracy to your headstock.
• Peterson StroboClip HDC — the rechargeable version of the StroboClip HD, so you're never digging around for a battery mid-gig.
• Peterson StroboStomp Mini — for players who want Peterson precision on a crowded pedalboard without sacrificing space.
• Peterson StroboVUE — a modern, high-definition pedal tuner built for today's boards and rigs.
• Peterson StroboStomp HD — the flagship pedal tuner, with the largest display and the deepest library of Sweetened Tunings for players who want it all.

Shop Peterson at ECG Music

As an authorized Peterson dealer, every tuner we sell is backed by full manufacturer support — no gray-market guessing games. If you've never played through a proper Sweetened Tuning, it's genuinely one of those "why didn't I do this sooner" upgrades. Browse our full Peterson lineup here, or reach out with any questions — we're happy to help you find the right one.