what is the average file size of a song
The average file size for a song that long is about 4mb, add or take 1mb. The size of each song depends on its quality, or bitrate. Your songs may be of CD quality bitrate, which is 1,411.2kbits/s, compared to MP3 quality, which is 128 or 192. There are file types with qualities everywhere in between. Generally, you might notice a small difference in quality if you go down from CD to MP3.