As the notes failed to please her, an edge of temper crept into her expression. While her teacher nodded genially and tapped his foot she felt mocked. Surely he could hear that it was not right? She stopped abruptly and restarted from the beginning. She had heard this piece played by the symphony orchestra's lead violinist on youtube and if she couldn't match that then she might as well quit now. Again came the error, worse this time. She would have to practice three hours tonight instead of two. Less than perfection would not be tolerated.