Science of sound: Vibrations: the cause of sounds -- Bull roarer -- Sound, frequency, and pitch -- How sound travels -- Sound trumpet -- Sound in solids and liquids -- Science and music: Science of strings -- Waves. Standing waves, and harmonics -- Waves, octaves, music, and math -- String telephone and a bell -- Vibrating air column -- Resonance -- Sounds of the sea: resonance with tubes of air -- Instruments with strings: Why a hollow box under the strings? -- What is the purpose of a mute on a stringed instrument? -- Wide-stringed piano -- Twangy piano -- One-string guitar -- Two-string bottle banjo -- An eight-string harp -- "Washtub" bass -- Shoe box guitar -- Wind instruments: Hose horn -- Simple pipe organ -- Fluty horn -- Bottle band -- Panpipe you can make -- Reed horns -- Percussion instruments: Mechanic's xylophone -- Drinking glass bells -- Bell and woodwind mystery -- Mechanic's chimes -- Bells from flower pots -- Wood chimes and other chimes -- Some inexpensive percussion instruments -- Further reading -- Internet addresses -- Appendix -- Index.