When comparing Audacious vs cmus, the Slant community recommends Audacious for most people. In the question“What are the best audio players for UNIX-like systems?” Audacious is ranked 1st while cmus is ranked 5th. The most important reason people chose Audacious is:
Audacious is a classic music player at heart that has not felt the need to weigh itself down with an assortment of unnecessary options. Advanced functionality can be attained through plugins available from within the program.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Streamlined player not weighed down by unnecessary options
Audacious is a classic music player at heart that has not felt the need to weigh itself down with an assortment of unnecessary options. Advanced functionality can be attained through plugins available from within the program.
Pro Tons of plugins
Pro Lightweight
My audacious uses only 18.5 MB of RAM. It has a Winamp visualization style that's very minimized and convenient.
Pro Support for Winamp themes
Audacious can switch from its GTK interface to one that matches the looks of the famous Winamp player. What's even better is that this interface supports any Winamp themes, which allows for more options.
Pro Folder oriented player, but able to play any music container and highly configurable
Lets you play, delete and even change metadata of your music files.
Pro The easiest player for multiple types of files
It plays dts, aac multichannel, etc.
Pro Compatibility with most media formats
It's able to reproduce most of media formats without external plugins.
Pro CLI only
CLI makes Cmus clean, fast and minimalist.
Pro Does not use a lot of memory
Cmus only uses about 15 MB. This is a very small and light media player, which is ideal for people with low end hardware.
Pro Works very well with tags from MusicBrainz database
cmus will factor in additional data from the MusicBrainz database while sorting. For example sort orders for arist or album, and the original release date for an album (in the case of a re-release).
Pro Good library structure
A lot of music players may act more like playlist viewers rather than a music library. cmus sorts by Artist > Year > Album.
Pro Fast
A lot of music players will be slow when starting if they have huge libraries, but CMus starts fast no matter the library size.
Pro Customizable keybindings for a personal experience
You can add keybindings for just about anything - including seeking (forward/backwards 1 minute, for example) which isn't supported by all music players.
Pro No mouse required
cmus does not require a mouse as it runs in the terminal
Pro Open source extensions and scripts
On GitHub you can find the official WIKI where there are a dozen extensions and scripts from color themes to a lyrics viewer and the ability to play YouTube songs.
Cons
Con No manual sorting fields
There is no option to add one's own categories to the sorting fields.
Con Updates are not very frequent
Con No bit perfect output past 24bit
Audiophiles require this, and while most users might not notice a difference, audiophiles will appreciate the improved audio quality.
Con Buggy
For example when using Visual Studio Code and Audacious you get flicked out to the gnome login screen.
Con No album art
cmus does not display album art
Con CLI only
No graphical interface is available for cmus. Everything is done through CLI (command line interface).
Con Difficult to use
Cmus uses odd keyboard shortcuts such as "C" to pause, "E" to add songs to queue, and "4" to edit the queue.
Con Can't play wavepack files
