The current version 2.7.0 of pianoscope contains a regression which prevents a pitch raise from being started when the inharmonicity has not been measured before. I have already identified the problem and issued an update (v2.7.1) to the App Store. It should go live within the next 24 hours. In the meantime, make sure to measure inharmonicity first and then start a pitch raise. Please excuse the inconvenience.
