Hello!
It's easy enough to do by editing the following files:

for artists
/components/com_muscol/views/artist/view.html.php
for albums
/components/com_muscol/views/album/view.html.php
for songs
/components/com_muscol/views/song/view.html.php

For example, you want to see this design in a meta descriptions album using the available variables:

Album name - text - Artist name - text - Album Year

This will replace the code in the file /components/com_muscol/views/album/view.html.php (about 189 line)

// meta description
if(!empty($album->metadescription)){
$document->setMetaData( 'description', $album->metadescription ) ;
}
else {
$document->setMetaData( 'description', $album->name . ' - ' . JText::_( 'ALBUM' ).' ' . $album->artist_name
.''. JText::_( 'RELSD' ).' ' . $album->year.''. JText::_( 'YEARS' ));
}


The description in this case, will this:

Sheer Heart Attack - album of the rock band Queen, released in 1974