Missing FluidSynth about easyabc

[jwdj]

FluidSynth is a real-time sample based software synthesizer.
FluidSynth plays midi's files using so called sound fonts (with extension .sf2)

https://trisamples.com/free-soundfonts/
A popular allround soundfont is Fluid R3 GM

Thanks to Wim Vree who made modifications to FluidSynth and provided a working python binding we will have FluidSynth integration in EasyABC as of 1.3.7.8. No more need to use an external player.

You can enable the FluidSynth player by specify a valid soundfont in Settings -> Abc Settings -> File Settings

You can find a Windows DLL and a Ubuntu binary in the following location:
https://wim.vree.org/svgParse/testplayer.html
It needs to be in the same folder as easy_abc.py / EasyABC.exe

So far it has been tested with Windows 10.

I have fixed the ImportError by the way.