You have a number of critical problems:
** You used gadmin-samba.
Nothing personal but I don't do Gadmin-Samba. Just not worth trying to fix. If somebody else wants to take it on great. I for one wish they would remove it from the repos.
** You got an error message stating that you needed to install smbclient.
Smbclient has been a part of the base install of every Linux distro since Gereral Eisenhower became President. I don't know how it could not already be there so I'm wondering what other fundamental things are missing.
If it was my machine I would start over - at least with smb.conf:
(1) Make sure the following file exists: /usr/share/samba/smb.conf
(2) Make a backup of your current smb.conf
(3) Copy the default to it's new location:
sudo mv /etc/samba/smb.conf /etc/samba/smb.conf.bak
(4) Go into smb.conf and fix one mistake:
sudo cp -a /usr/share/samba/smb.conf /etc/samba/
Find the line:
encrypt passwords = no
and change it to:
encrypt passwords = yes
Then add add the following lines to the [global] section - right under the workgroup line:
(5) Add your share to the end of smb.conf:
netbios name = server210
name resolve order = bcast host lmhosts wins
(6) Restart samba
comment = No comment
path = /home/josh/Music
guest ok = no
sudo service smbd restart
sudo service nmbd restart