# How to sit pictures

**The throne** — Joe LaBarbera, photo by Tom Marcello (Webster, New York), 1978,
Creative Commons Attribution-ShareAlike 2.0.
<https://commons.wikimedia.org/wiki/File:Joe_LaBarbera.jpg>
Saved as `drums/images/sit-throne.jpg` (resized for the page). The picture is
there for the seat: front of the throne, back tall, thighs sloping a little
down. The left hand in that photo is traditional grip. The sticks section
teaches matched grip.

**Matched grip** — photo by Uryah, Creative Commons Attribution 2.5.
<https://commons.wikimedia.org/wiki/File:Regular_grip_left_hand_02.jpg>
Saved as `drums/images/matched-grip.jpg`.

# Kit pictures

The two pictures on the kit page are not photos of the samples.

**Acoustic kit** — line drawing by Clngre, Creative Commons Attribution-ShareAlike 3.0.
<https://commons.wikimedia.org/wiki/File:Drum_kit_illustration.png>
The copy in `drums/images/acoustic-kit.png` is flipped so the hi-hat is on the
player's left. Word labels are drawn by the page, not part of the file.

**Electronic kit** — photo by RethoricalCheese, Creative Commons Attribution-ShareAlike 4.0.
<https://commons.wikimedia.org/wiki/File:Basic_drumset.jpg>
Saved as `drums/images/electronic-kit.jpg`. Word labels are drawn by the page.

# Drum samples

The kit in `drums/samples/` is built from **MuldjordKit**, by Lars Muldjord,
recorded in 2009. This room uses the FreePats edition assembled by
roberto@zenvoid.org, a stereo reduction of the original 16-channel DrumGizmo kit.

Licence: **Creative Commons Attribution 4.0 International**
<http://creativecommons.org/licenses/by/4.0/>

The licence requires this credit, in these words:

> Drum samples provided by DrumGizmo.org.

## What was changed

Seventeen single hits were selected from the kit's velocity layers and converted
to mono 44.1 kHz mp3 for the web. Layers are numbered soft to loud, so each voice
is a different performance rather than the same hit at a different volume, and
levels are left exactly as recorded — the soft hits are meant to stay soft,
because the ghost-note and accent lessons depend on the difference.

Rebuild with `python3 drums/scripts/build_samples.py --kit <checkout>`, which
lists the exact source file behind every voice.