piano Digital Piano App

Online 528 Hz Piano

On a conventionally tuned piano, the note C5 (this is the one that’s located one octave above middle C) has a frequency of 523.251 Hz.

However, on our interactive piano above, this note has been tuned to 528 Hz, which is the Solfeggio frequency known as the “Miracle” tone, or “love frequency”. All the other notes on the piano have been tuned relative to this frequency.

In this tuning scheme, the A4 note has a frequency of 444 Hz, which is slightly higher than its standard value of 440 Hz.

A scientific study, Effect of OM Chanting of 528Hz Frequency on Heart Rate Variability, Psychological Wellbeing, and Quality of Sleep in Patients of Hypertension: A Randomised Controlled Trial, published in 2025 in the peer-reviewed Annals of Neurosciences concluded that listening to Om chanting which was recorded at a frequency of 528 Hz had a significant effect on the wellbeing and sleep quality of the study’s participants.

You can read the full method and results of that open-access study on Sage Journals at https://journals.sagepub.com/doi/full/10.1177/09727531251390261.

On YouTube, there are a large number of meditative videos featuring music tuned to 528Hz. You can find one such example below.

If you tried to play along with this music on a regular piano, your playing would sound out of tune - slightly too flat. Our online 528 Hz piano allows you to play along to this music while staying in tune.

Other alternative tunings

At digitalpiano.app, we have another piano available in a non-conventional tuning which you can play online - learn more and play our 432 Hz Piano.

Share your thoughts

Let us know in the comments below - do you prefer the sound of the 528 Hz piano? How does it make you feel and what are your favourite pieces of music that are tuned to this frequency?