First of all thanks a lot for your time. I did as you suggested and the partitions are being mounted in directories I want but there are two entries for each partition under the places menu; one is named like "54GB filesystem" and it works properly while the other entry is named as the mount directory and clicking on it give this error
Mount is denied because the NTFS volume is already exclusively opened.
The volume may be already mounted, or another software may use it which
could be identified for example by the help of the 'fuser' command.
but I got no results.
fuser -M /media/Music
The line I add in fstab is
UUID=08189ED7189EC35C /media/Music/ ntfs-3g auto,user,rw,exec 0 0