{"collection":"aor","html_url":"https://unchartedknowledge.5gfusion.net/browse/aor/dv/1129.htm","path":"aor/dv/1129.htm","source_url":"https://sacred-texts.com/aor/dv/1129.htm","text":"The Da Vinci Notebooks\nOf Music (1129. 1130).A drum with cogs working by wheels with springs [2].\nA square drum of which the parchment may be drawn tight or slackened by the lever a b [5].\nA drum for harmony [6].\n[7] A clapper for harmony; that is, three clappers together.\n[9] Just as one and the same drum makes a deep or acute sound according as the parchments are more or less tightened, so these parchments variously tightened on one and the same drum will make various sounds [16].\nKeys narrow and close together; (bicchi) far apart; these will be right for the trumpet shown above.\na must enter in the place of the ordinary keys which have the ... in the openings of a flute.\n281:629 : This chapter consists of explanations of the sketches shown on Pl. CXXI. Lines 1 and 2 of the text are to be seen at the top at the left hand side of the first sketch of a drum. Lines 3-5 refer to the sketch immediately below this. Line 6 is written as the side of the seventh sketch, and lines 7 and 8 at the side of the eighth. Lines 9-16 are at the bottom in the middle. The remainder of the text is at the side of the drawing at the bottom.","title":"Vol. II: XVIII. Naval Warfare. Mechanical Appliances. Music.: 1129.","type":"page"}