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Best Harp Tuner? Free Strobe for 47-String Pedal Harp
Why a strobe is the best harp tuner
A harp string rings for several seconds after you pluck it, with a rich, stable spectrum. That sustained, overtone-rich tone is the ideal input for a strobe: every harmonic gets its own smooth rotating ring, and the rings settle to a steady cents reading instead of the jitter a needle tuner shows on a ringing string. Across 47 strings that steadiness saves real time in a tuning pass.
The bass wires and the two lowest strings
The lowest strings on a pedal harp are wire-wound and produce strong sub-harmonics, making them an excellent use case for StroboPro's harmonic rings. Note that the very lowest strings (around C and D in the contra octave) have no pedal mechanism and must be tuned directly by hand; set them carefully with the strobe before tuning the rest of the instrument.
How to tune a harp with StroboPro
- Open the harp tuning - tap the Tap to Tune button (the one with the microphone) and allow microphone access.
- Set all pedals to natural (flat) position.
- Pluck each string once and let it ring; the strobe reads the sustained tone.
- Tune string by string up the range; the 0.1-cent reading is steady enough to move quickly.
- Re-check the lowest wire strings and any that sounded off, since those drift most with temperature.
Related guides
Frequently asked questions
How many strings does a concert pedal harp have?
A concert pedal harp has 47 strings, tuned C1 to G7 - about six and a half octaves. StroboPro's Pedal Harp preset targets all 47 natural notes so you can tune the whole instrument in one pass. Open it directly: [pedal harp in C tuning](https://strobopro.se/preset/harp/pedal-harp/in-c).
Why use a strobe for harp?
Harp strings ring for seconds after plucking with a rich, stable spectrum - the signal a strobe is built to read. The pattern settles to a steady cents value across all 47 strings, where a needle tuner jitters on the sustained, harmonically rich tone.
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You can try the full version during a no-strings-attached trial. The trial never converts automatically: when it ends, premium features are simply disabled until you actively choose an affordable subscription or a one-time purchase for lifetime premium access. The one-time purchase is available on iOS and Android, like buying the app outright; web one-time purchase support is coming soon.
Published by Applicaudia, the maker of StroboPro. The 0.1-cent figure describes the tuner's display resolution, not a lab-measured accuracy specification. Frequency values are equal-temperament approximations; harpists may tune to slight personal or ensemble offsets.
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