Hello, this weeks lecture is given by Zack Moir and Nikki Moran. You met Zack last week. Nikki Moran joined the Reid School of Music in 2007. Her research specialism is in Music As Social Interaction, and she teaches all levels of undergraduate and post graduate students at Edinburgh. In this week's lecture, we will build on what we discussed last week looking specifically at sharps and flats and the way that we use them. We'll also look at key signatures, minor scales, and minor keys and finally, how we can extend the stave to represent a wider range of notes in written music.