Little help in DataBase Structure

Question

Hello,
I'm doing a music database, it's working perfect, i Just need some help with my database structure, here is what I did in my database:
Database Music
table catalog [
artist ( band or artist name )
country
Type ( MP3, CD, LP, EP, Picture )
Title ( CD, LP, EP or Picture Title )
Style ( Music Style )
Year ( Release Year )
Musics ( List of music in CD, LP, EP ... )
Commentary ( Commentary about Cd or band or a song ) ]
My Java GUI to insert in data base
artist ( textField )
country ( textField )
Type ( JComboBox )
Title (textField )
Style ( textField )
year ( textField )
Musics ( JTextArea )
Commentary ( JTextArea )
The problem is that I'm inserting musics in a TextArea in that way
01 - Tom Sawyer 4:33
02 - Red Barchetta 6:06
03 - YYZ 4:24
04 - Limelight 4:19
05 - The Camera Eye 10:56
06 - Witch Hunt 4:43
07 - Vital Signs 4:43
and it all go to a single musics row in database, and I'm thinking in insert the lyric for each song too and insert the
music length in a separeted row too , so i need insert each music in a single textField then the length and the lyric
And I need a way to know that each music belongs to a cd and each length and lyric
belongs to a song, and where should i put my primary key or make the relationship?
song name is not the better choise i think, since there is too many songs with same name.
If you know a better way to do it, would help me alot, and if you know what changes i need to do
in my GUI too.
Thank You.

Answer 1

I suppose you are just messing around but from the point of view of formally managing a lot of music there are going to be a number of problems.
For example how many people have sung "White Christmas"? How many CDs has it appeared on? How many CDs has the same song (version) by the same artist appeared? How many CDs have the same song title and artist but a different version (for instance a live vs studio performance.)
How many songs have more than one 'style'? How many songs have more than one artist?
Realistically you need to start by figuring out exactly what important aspects do you want to manage. For instance maybe you just want to manage CDs, and just want to know the songs on each. Or perhaps you want CDs and artists - so you can cross reference an artist to all the CDs.
Because music is so complex every time you add an important aspect you are likely to add several more tables and linkages for each aspect.
Thus if you want to manage just CDs you might be better off with this
CD Table - cd_id, name
Songs - cd_id, title, artists, length, type
But with CDs and artists you are going to need this
CD Table - cd_id, name
Songs - song_id, cd_id, title, length, type
song_to_artist - song_id, artist_id
artist - artist_id, name
Notice that "song_to_artist" is a linkage that exists only to hook a song to an artist.