ITunes 10.5.1 brings cloud music services

According to foreign media reports, Apple today released the itunes 10.5.1, the new version also brings us the itunes Match service. With an annual fee of USD 25, the service will find songs in the user's music library in icloud and provide a high-quality AAC version. But how on earth does itunes scan your music library? When you turn on the itunes Match feature, the service will perform three parts: Analyze your music library, match music, and upload music that cannot be matched. These three procedures will be for all music in itunes and you can't choose which song to exclude. If there is a successful music match, then you will be able to download this song 256K high-quality AAC file, if a song does not match the success, then the existing format will be uploaded to ICloud, the bit rate is promoted to 320K. If the existing file is in lossless format, then the itunes match will be converted to the 256K AAC file and uploaded. Your local music library doesn't change when you use the itunes Match service, and if you have a low quality song and find a matching high quality song in the icloud cloud, you can delete the local low quality music This song will appear next to the music in the icloud of the picture, you can click and download high-quality songs, then this high-quality song will always be yours. The ITunes match uses the song's Meta data (meta-data) for matching, and if you add a lot of metadata to the song, the data will be uploaded to icloud.