The PCR series of MIDI keyboards is well over 10 years old. Roland dropped software support for these MIDI keyboards sometime ago. Modern operating systems like Windows 10 and macOS X 10.15 are no longer supported with drivers and the PCR Editor app.

The PCR Librarian is intended to be a stop-gap or fall-back app to allow control maps to be backed up to a computer or downloaded from a computer to the PCR. Using the PCR Librarian you can receive the current or all 15 control maps from the PCR or send one or all control maps to the PCR.

The PCR Librarian app is written in Python 3 using the TKinter GUI library.

You need a Python 3 version with the TKinter library installed. Most Python 3 distributions for Windows meet that requirement. However, the stock version of Python 3 that comes with macOS X does not contain TKinter. Therefore, if you are on macOX X, use brew to install the latest version of Python 3.

• Roland PCR-800