I’ll probably tune my piano myself from now on, and more frequently than once or twice a year. So after tuning it that second time, the bass strings resonated beautifully again.

Interesting is that after the first rough pass, the bass strings sounded very shallow and I was really bummed, then I pulled up PianoMeter again to check and the mid range was all about 2-3 cents too high (either from the accumulated change of tension across the piano or me just tuning it slightly sharp while focusing too much on the numbers). What also helped speed up is to not focus so much on the number of cents too high/low, and setting a threshold in your mind, but rather getting the rotating “discs” to stop spinning. I was first discouraged that it took like 5-6 hours to do the first rough pass, but the second pass a week later went way faster (like half the time) as I starting to get the hang of the order of the tuning pins and the much smaller adjustments for fine tuning. I’ve also recently purchased a used Yamaha U1 which I’ve timed twice in 3 weeks, first a rough pass after it was moved to my house and it acclimated, then again to fine tune it. I bought the 1 year pro subscription to do a pitch raise on my in-laws very out of tune piano, and it worked very well. Nice looking UI, frequent updates & automatically calculated tuning curve on the fly: Awesome. I can’t say enough good things about the app and support, I highly recommend it!!!! Anthony the developer was very responsive and helpful with a few questions I had. While it took me about 6 hours to do my first tuning, it was a lot of fun and ended up sounding great! There are definitely things one needs to learn with experience, such as setting the pin and tuning unisons, but this app and all of the great documentation and video walks you through the whole process. For the basic paid version it did everything I needed and was far less than the other professional tuners. It was recommended to me by another pianist/tuner, and I believe it was what my previous tuner used. I purchased a high end tuning hammer and some mutes, and decided to go with PianoMeter for the app. After a lot of research, I decided to give it a try, if nothing else I would learn more about my instrument. My tuner for my Steinway M recently passed away and as I looked for someone else, I thought why not go down the rabbit hole and see what it would take to tune it myself. This app requires permission to access the microphone on your device and permission to read and write files. Access to all future features and enhancements.Custom tuning styles: create a custom tuning curve by adjusting interval weighting and stretch.Pitch raise mode that calculates overpull for an initial first pass 'rough' tuning (for pianos that are extremely flat).Save and load tuning files, so a piano doesn't need to be re-measured each time it is tuned.Upgrading to Professional unlocks all features of the 'Plus' version, plus the following: Calibrate device to an external frequency source.Tune to historical or custom temperaments.Tune to frequency standards other than A=440.Tuning functionality for the entire piano.Upgrading to 'Plus' adds the following functionality: Swipe in the graphing area to show a live frequency spectrum or the inharmonicity of measured notes.

Ability to measure each note on the piano to see how its current tuning compares to the ideal tuning curve (see if a piano is roughly in tune).

Tuning functionality for the mid-range of the piano only.

The Free version includes the following functionality: The extra functionality is unlocked through one-time in-app purchases. There are three levels of functionality: a free (evaluation) version, a paid 'plus' version with basic tuning functionality, and a 'professional' version with features geared towards professional piano tuners. In other words, it creates a custom tuning for your piano with the best compromise between intervals like fifths, fourths, octaves, and twelfths, the way aural piano tuners do when fine-tuning. Unlike regular chromatic tuning apps that simply tune to a pre-calculated equal temperament, this app actively measures the tonal characteristics of each note and automatically calculates the ideal “stretch” or offset from equal temperament. To tune the entire piano you will need to buy an upgrade through an in-app purchase. The 'free' version of this app is primarily for evaluation, and it only allows you to tune notes on the piano between C3 and C5.

PianoMeter is a piano tuning app that will transform your device into a professional quality electronic tuning aid.

Piano tuner app for iphone