One difference is that the amount of vitamin B12 in Centrum Silver (25 mcg) is much lower than the amount used in the positive studies (100 and 500 mcg, respectively). Loss of cognitive function is a well-known effect of vitamin B12 deficiency.
Click on the download link. Allow the song to download to your cell phone. Close your web browser and locate the song on your cell phone (usually under sounds, music, mp3s, or multimedia). Select the song to play it.
Try to download music with an iTools program on the PC. This program is the same as an iTunes, but much easier and quicker. Also, you can try to download some music apps to upload the songs there to listen after being offline: Mixmatch, also provide the lyrics and a great base of the songs.