g2.drawLine(0, c * CELL_HEIGHT * beat, 15, c * CELL_HEIGHT * beat); // 1/4
g2.drawLine(0, c * CELL_HEIGHT * halfNote, 20, c * CELL_HEIGHT * halfNote); // 1/2
g2.drawLine(0, c * CELL_HEIGHT * measure, 30, c * CELL_HEIGHT * measure); // 1/1
g2.drawLine(0, c * CELL_HEIGHT * beat, 15, c * CELL_HEIGHT * beat); // 1/4
g2.drawLine(0, c * CELL_HEIGHT * halfNote, 20, c * CELL_HEIGHT * halfNote); // 1/2
g2.drawLine(0, c * CELL_HEIGHT * measure, 30, c * CELL_HEIGHT * measure); // 1/1