Saxophone and watt steam engine: what they have in common

1. Step 1. Saxophone — evolved from — Clarinet. A clarinet reed on a metal body.
2. Step 2. Clarinet — uses — Resonance. Resonance.
3. Step 3. Resonance — is used in — Valve trumpet. Resonance of the tube.
4. Step 4. Valve trumpet — has part — Valve. Valves.
5. Step 5. Valve — is part of — Watt steam engine. A slide valve distributes the steam.

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