In North America, music appreciation courses often focus on Western art music, commonly called “Classical music“. Usually music appreciation classes involve some history lessons to explain why people of a certain era liked the music that they did. “Appreciation,” in this context, means the understanding of the value and merit of different styles of music. Music appreciation classes also typically include information about the composers, the instruments and ensembles, and the different styles of music from an era. Music appreciation courses are widely available in universities and colleges. Typically, these courses are designed for non-music majors. A significant part of music appreciation courses is listening to recordings of musical pieces or excerpts from pieces such as symphonies, opera arias and concertos. In some music appreciation classes, the class may go out to hear a live musical performance by an orchestra or chamber music group.

https://en.wikipedia.org/wiki/Music_appreciation

Some more useful user-management commands (also limited to local users):

To add a new user you can use:

sudo adduser new_username

or:

sudo useradd new_username

See also: What is the difference between adduser and useradd?

To remove/delete a user, first you can use:

sudo userdel username

Then you may want to delete the home directory for the deleted user account :

sudo rm -r /home/username

^{(Please use with caution the above command!)}

To modify the username of a user:

usermod -l new_username old_username

To change the password for a user:

sudo passwd username

To change the shell for a user:

sudo chsh username

To change the details for a user (for example real name):

sudo chfn username

And, of course, see also: man adduser, man useradd, man userdel… and so on.

To add a user to the sudo group:

usermod -aG sudo username

Source: A command to list all users? And how to add, delete, modify users? – Ask Ubuntu

Larghissimo – very, very slow (24 bpm and under)
Adagissimo – very slowly
Grave – very slow (25–45 bpm)
Largo – broadly (40–60 bpm)
Lento – slowly (45–60 bpm)
Larghetto – rather broadly (60–66 bpm)
Adagio – slowly with great expression[8] (66–76 bpm)
Adagietto – slower than andante (72–76 bpm) or slightly faster than adagio (70–80 bpm)
Andante – at a walking pace (76–108 bpm)
Andantino – slightly faster than andante (although, in some cases, it can be taken to mean slightly slower than andante) (80–108 bpm)
Marcia moderato – moderately, in the manner of a march[9][10] (83–85 bpm)
Andante moderato – between andante and moderato (thus the name) (92–112 bpm)
Moderato – at a moderate speed (108–120 bpm)
Allegretto – by the mid 19th century, moderately fast (112–120 bpm); see paragraph above for earlier usage
Allegro moderato – close to, but not quite allegro (116–120 bpm)
Allegro – fast, quickly, and bright (120–156 bpm) (molto allegro is slightly faster than allegro, but always in its range)
Vivace – lively and fast (156–176 bpm)
Vivacissimo – very fast and lively (172–176 bpm)
Allegrissimo or Allegro vivace – very fast (172–176 bpm)
Presto – very, very fast (168–200 bpm)
Prestissimo – even faster than presto (200 bpm and over)
Source: Tempo – Wikipedia

Source: How can I shorten my command line (bash) prompt? – Ask Ubuntu

This could better be done as

x=”\n”
echo -ne $x

-e option will interpret backslahes for the escape sequence
-n option will remove the trailing newline in the output

PS: the command echo has an effect of always including a trailing newline in the output so -n is required to turn that thing off (and make it less confusing)

This could better be done as x=”\n” echo -ne $x -e option will interpret backslahes for the escape sequence -n option will remove the trailing newline in the output PS: the command echo has an effect of always including a trailing newline in the output so -n is required to turn that thing off (and make it less confusing)

Source: Echo newline in Bash prints literal \n – Stack Overflow

sudo apt-get install libreoffice

Source: How do I install Libre 5.0.1 on Ubuntu 14.04. LTS – Ask LibreOffice