Compare songs stored in multiple folders

[ubose]

I have hundreds of music files that are named in the same pattern (by the artist and song title) and saved in several folders. Many of the songs are duplicated in multiple folders. I want to compare across the folders and retain the copy of a song that has the biggest file size, which likely indicates to have the longest track length since the bit rate is the same for all files. Next, I want to delete the remaining copies. Please help me, a brand-new user, to accomplish this.

[Administrator]

1. Use the search method "Find duplicate files on the basis of their properties" -> "File Name" OR the search method "Find similar file names".
2. At the search result use the select command "Select all files except the largest file in each group".

[ubose]

My first attempt to find duplicate files in the Music folder produced too many duplicates. How can I narrow my search to several subfolders within a specific upper-level subfolder of the Music folder? I think I am asking how do I select a particular folder within an upper level folder as a source folder?

For example, I have the Music folder, and a subfolder in it named "Pop Songs". Under Pop Songs, I have subfolders named "Collection A", "Asha's Favorites", and "My Favorites". I want to search for duplicates across all the subfolders inside the "Pop Songs" folder.

Thank you.

[Administrator]

I want to search for duplicates across all the subfolders inside the "Pop Songs" folder.

Add the "Pop Songs" folder as a source folder?

[ubose]

I hadn't seen a way to select a source folder on the screen that displays on starting the app because it showed the top most folders in the hard drive and didn't have a means to drill down to lower level folders. Now, I selected the "Add Folder" option to add the lower-level folder as the source folder. Thanks.