In VirtualBox, choose Insert Guest Additions CD image... from the Devices menu.
Next, you'll need to install the Guest Additions in a Terminal window.
sudo sh /media/cdrom/VBoxLinuxGuestAdditions.run
Reboot.
After rebooting, open a new Terminal and use the following command.
lxrandr



sudo apt install python3-pip
pip3 install setuptools
pip3 install wheel
pip3 install pathlib2
pip3 install wxPython
https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-18.04/wxPython-4.0.6-cp36-cp36m-linux_x86_64.whl


pip3 install -U -f https://extras.wxpython.org/wxPython4/extras/linux/gtk3/ubuntu-18.04 wxPython --user


/usr/share/sounds/sf2/FluidR3_GM.sf2


sudo apt update
sudo apt install snapd
sudo snap install --classic code
/snap/bin/code
sudo snap install cmake --classic



sudo apt install abcmidi abcm2ps fluid-soundfont-gm jackd libfluidsynth1
sudo apt install python3-wxgtk4.0 python3-wxgtk-media4.0
sudo apt install oss-compat
sudo modprobe snd-pcm-oss


sudo apt install alsa-oss

unzip Downloads/EasyABC-master.zip
mv EasyABC-master/ EasyABC

tar -xvzf Downloads/fluidsynth-2.1.0.tar.gz
cd fluidsynth-2.1.0/
mkdir build
cd build
sudo apt-get install cmake libgtk2.0-dev
cmake ..
make libfluidsynth
cp src/libfluidsynth.so* ~/EasyABC

cd ~/EasyABC
python3 easy_abc.py


fluidsynth: error: Device </dev/dsp> does not exist





software-properties-gtk
  enable 'source code repositories'

sudo apt-get build-dep fluidsynth --no-install-recommends




