My friend Steve is an exceptional classical guitarist. Watching him perform is inspiring – he has a rare mastery over the instrument and has spent years developing his craft. Steve can also explain the techniques he is using while he is playing, to teach and demonstrate how a student can learn and improve their own skills. Steve can make a guitar sing, and says that music is about tension and resolution. If music is all tension, you get uncomfortable as a listener. If it only resolves, it is boring, tedious repetition. Steve extends this concept to the actual physical actions that a guitarist employs to create certain sounds. For example, if you play with a lot of tension, you will limit your ability to do certain tasks. To make music, you need to find a balance between tension and resolution, and to find this balance, you need a mix of knowledge, skill and creativity.