Back to work and back into the deep end! Anthony gave us a quick demonstration of planing before letting us get back to our projects. I had a quick chat to Anthony about whether I should plane the soundboard - I noticed it had some small imperfections (divets) in the top, but he said it's so thin already it would be very difficult to plane. He suggested I build the thing and just give it a good sand with a fine-grit paper. I also asked him what he thought the best joint to make would be at the apex of the instrument. He thought the standard butt-joint mitre to the apex would be best, and I agreed. I had considered doing a half-lap but decided if would be much more difficult for no real gain. So, after Mandy sharpened my pencil for me (!), I marked up the wood again (I'd marked it up wrong before) and marked it out again with a knife. I then cut the mitre on the two side pieces. I used a tenon saw and clamped the wood to a bench hook which was clamped in the vice. This meant the piece was solid and I could concentrate on cutting accurately. I cut the first piece really well, but the second piece went a bit out of line. Fortunately I didn't cut over the line, I cut behind the line at an angle, so next lesson I will have to take some off this to make it fit. I guess I'll need to ask the best way of doing this.