GRID STEP. You can print out the base construction lines and start drawing on tracing paper, or you can draw the grid layout yourself using the following steps.1) Draw a rectangle that will define the conditional proportions and boundaries of the chosen drawing. 2) From the middle of the rectangle, draw one vertical and one horizontal line equally dividing the shape. 3) Draw another horizontal line equally dividing the upper half of the rectangle. Similarly, draw a horizontal line equally dividing the bottom half of the rectangle. 4) Draw a vertical line equally dividing the left half of the rectangle. Similarly, draw a vertical line equally dividing the right half of the rectangle.

STEP 1. Mark off the width and height of the trumpet. Add the general proportions. Draw an oval for a bell and a line to mark the center of the pipe.

STEP 2. Outline the widest part of the lead pipe.

STEP 3. Define with general lines the parts and components of the trumpet.

STEP 4. Add a mouthpiece, valves and valve sides.

STEP 5. Delineate the shape of the trumpet.

STEP 6. Add lines to indicate the pipe shape.

STEP 7. Work on the trumpet, paying special attention to details.

STEP 8. Contour, trying to vary the blackness and thickness of the line. Add some details and the ground. Erase all guidelines.