You aren't entirely clear on whether you want to keep the files in their current structure or not? As others have suggested if you aren't dearly attached to them being sorted that way you can just move them all up one directory in the hierarchy so that when you enter the "band name" directory the files are right there. However, this could be very messy if you have files from several different albums by the same band all in one "band name" directory. If this is what you want to accomplish, this can be done automatically using a batch file in windows.
Lets say for example you have:
/My Music/Band Name/Album Names/
Create a simple text file inside of /My Music/ (right click -> New -> Text Document) and name it something like "condense.bat". You will be changing the file extension from .txt to .bat and Windows will ask if you are sure (assuming you don't have file extensions hidden? I always have hide file extensions turned off so I don't even know how Windows deals with this if they are hidden...).
Next, you right click on the empty .bat file you have created and click "Edit" which will open it in notepad. Paste the following inside:
Code:
for /f "delims==" %%i in ('dir /a:d /b') do for /f "delims==" %%f in ('dir %%i /a:d /b') do (move "%%i\%%f\*" "%%i"&&rd "%%i\%%f" /s /q)
Then save the file, and double click it to execute it. It will move all files from within their "Album Name" directories up one directory into their respective "Band Name" directory and delete the empty "Album Name" directory. If you have a huge collection you will be running this on I would try it with a small test sample first, although I have tested it and it seems to work fine...
All of that being said, it seems to me as though you need to take better advantage of the meta tags (ID3) present in the files and use some sort of GUI software to sort your collection. Whether this is just for playback or actually sorting them within the directory structure there are hundreds of little apps that are made specifically for such a purpose. For example I use Foobar and it scrapes my entire library and presents it in a logical fashion, I don't even look at directory structures...