In an effort to catch up with music streaming leaders Spotify and Apple Music, Amazon is now giving Prime subscribers full access to its library of around 100 million songs without ad breaks. But there’s a catch: In contrast to the Amazon Music Unlimited subscription, which costs €10 or $9 per month, basic Prime subscribers can’t pick specific tracks to play. Instead, you can only listen to playlists, albums and artists in shuffle mode, Amazon said on Tuesday, announcing its new Prime subscription conditions. However, Prime subscribers can still skip songs indefinitely and create up to 15 play…