When comparing Amarok vs cmus, the Slant community recommends cmus for most people. In the question“What are the best audio players for UNIX-like systems?” cmus is ranked 5th while Amarok is ranked 23rd. The most important reason people chose cmus is:
CLI makes Cmus clean, fast and minimalist.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Loaded with features
Amarok contains the following features:
Built-in equilizer
Built-in lookup of songs and artists (Amarok will display Wikipedia articles or lyrics of songs that it can find.)
Ability to add online playlists or streams, which is great for online radios such as soma or di.fm.
Supported by Cinnamon Desktop media widget.
Built-in iPod and iPhone support.
Built-in MTP and USB support.
Built-in music services for Ampache, gpodder.net, Jamendo, Last.fm, Magnatune, Amazine Music, MP3tunes, and podcasts.
Amarok can configure, add, and import scripts.
Pro Original design
The design of Amarok does not resemble most other music players. It's definitely in a class of its own.
Pro Global keys to move from one song to another, rewind X seconds, advance X seconds, etc
The ability to assign global keys to move from one song to another, rewind X seconds, advance X seconds, etc. Other players do not have that feature.
Pro Search in the playlist while seeing other songs
You can search for songs in the playlist... without adding a filter that prevents you from seeing the other songs. That way you can find e.g. the song that has been played before House of the Rising Sun. Using other players you can not search for songs in the playlist without hiding the songs that are not looked for.
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 UI is not the most intuitive
While the design of the UI is different to most other music players, the way it actually functions can feel foreign to many and result in a lot of confusion.
Con Resource hog...
Con No seamless transition between tracks when they're on different files.
Con Doesn't feel very responsive
This is particularly the case with the play/pause button: it feels like there's a delay from when the button is pressed to when the music actually starts/stops.
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.