Have you looked at this question yet?
Thank you.

hello!

this article simply explains how to add explanation to fields, or make them required, it's not about adding new fields..

that actually requires PHP coding and new MySQL DB fields, and adding code in several files..

How do I add new fields to the forms then?

Can I just copy a field from the php page and then change its name in php.

In other words if I see a dropdown field is already created in one form can I just copy the php code for that field say from div to div and paste in another forms php?

No.. that's what I said above. it's not just copying/pasting something in the form, it's much more than that!
as I said, requires additions to several files in PHP and also changes in the Database (so you need to know MySQL as well). otherwise, how will the fields be stored? do you know what I mean?
this is not something you can do yourself if you're not familiar with Joomla programming and have PHP and MySQL knowledge...

if you go to almost any of the music collection pages you will see the icons are not working
Here is a link that should show you that
http://www.keystothenet.com/elitejoom/main-detailed-layout/index.php?searchword=&artist_id=&genre_id=&tag_id=&option=com_muscol&search=songs&view=search&Itemid=160

or this one where it is more obvious
http://www.keystothenet.com/elitejoom/main-detailed-layout/voice-over-and-projects/playlist-1-my-first-playlist

did this work for you?

this is not something you can do yourself if you're not familiar with Joomla programming and have PHP and MySQL knowledge...

I have been doing my own coding edits for 15 years certainly not a certified coder but have done numerous edits and MySQL edits and have expert Joomla experience.
I can do most of these edits if directed to the right files and paths.

The main issue is we are going to need to change these fields in the forms for our business in the future so we need access to the forms themselves or a solid way of editing them.

If I cant do it what would you charge to do some edits to these forms in the main function of adding some fields to them?

Thank you.

ok, in that case you need:

1. to add the new field(s) in the DB table (for albums, #__muscol_albums is the DB table)
2. add the new field into the table class (in music collection's component, /administrator/components/com_muscol/tables
3. add your new field in the form field (form.php)
4. if necessary, add any necessary checks in the model file (/models/album.php)

If I cant do it what would you charge to do some edits to these forms?