Quod Libet is a free open source GTK+-based audio player for Linux, Windows and Mac OS. Quod Libet music player written in Python and it uses the Mutagen tagging library. Using it you can make playlists based on regular expressions. It supports reply gain, multimedia key and full unicode. It comes with the simple user interface and Bookmarks within files support.
Open your terminal app in ubuntu and add Quod Libet audio player PPA on your ubuntu by executing the below code.
sudo add-apt-repository ppa:lazka/ppa
Type your ubuntu password and hit enter. Then press the ENTER key to confirm the addition. Then run the below code in terminal.
sudo apt update
After that run the below command in your terminal app to install Quod Libet audio player in Ubuntu
sudo apt install quodlibet
Type Y and hit the enter key to confirm the installation.After the sucessful installation of Quod Libet audio player on ubuntu, restart your ubuntu pc. Just type quod libet in the ubuntu dash search field. Then click Quod Libet to open it. You can also open it by typing the below command in terminal