You can try Sonic Visualier [1] with Chordino plugin from the Vamp Plugin Pack [2]. It won't give you a full notation, but it can estimate chords from the audio recording. [1] https://sonicvisualiser.org/ [2] https://code.soundsoftware.ac.uk/projects/vamp-plugin-pack. - Source: Hacker News / 5 months ago

You may find it useful to look at existing software, such as Praat and Sonic Visualiser. Source: 11 months ago

2) there are a few spectrum analyzer software options to show you the notes being played. I use Sonic Visualizer myself. https://sonicvisualiser.org/. Source: over 1 year ago

You can use e.g. The Sonic Visualizer for picking out the pitches and durations. Source: almost 2 years ago

I haven't used it for this myself but I think Sonic Visualiser (https://sonicvisualiser.org/) might be able to tell you what notes are being played if you feed it a recording. Source: almost 2 years ago

Rakarrack has a GUI written in FLTK. It was my earliest adventure with guitar effects and DSP (ca 2008); it ran on a potato laptop and still kept up, which made the whole setup actually viable for spontaneous jam sessions at other people's places. Good times. - Source: Hacker News / 4 months ago

I was messing around with a guitar, a USB interface, and a software called https://rakarrack.sourceforge.net/ (I don't know if it is available on windows) and it was a lot of fun! You could scroll through the presets and make the guitar sound like all kinds of things! Definitely worth tinkering with. Source: about 1 year ago