If it's hammered, plucked, or bowed, then it is a string, you know!

And finally...the string family.

First, an amusing quartet made up of two violins, a cello, and a piano.

Piano

The piano's strings are hammered, which is how the sound is created.

A cute older couple (married for 62 years when this video was taken in 2008!) playing the piano at the Mayo Clinic

Sergei Rachmaninoff (1873-1943), a famous piano composer, plays the first movement from his Piano Concerto No. 2 

This is a recording of him doing it in 1929, and the recording is set to pictures of him. The Philadelphia Orchestra, conducted by Leopold Stokowski (1882-1977), a famous conductor.

This video shows some ways that contemporary (modern) composers and pianists achieve different sounds on the piano.

The Piano Guys playing an interesting arrangement of One Direction's hit "That's What Makes You Beautiful."

Harpsichord

Remember, the harpsichord's strings are actually plucked!

This is a video of a trio made up of a violin, a cello, and a harpsichord. See if you can pick out the different instruments' sounds.

This is a video of someone's homemade Lego harpsichord and how it works.

Harp

A harp cover of Owl City's song "Fireflies"

Marcel Grandjany's Rhapsodie, performed by Sivan Magen

Guitar

Guitar quartet

Slash (originally from the band Guns N' Roses, later started Velvet Revolver, also has solo career) plays some rhythm and lead guitar parts

Bass Guitar (Electric Bass)

Victor Wooten playing a bass guitar solo in a Dave Matthews Band concert

Laying down a bass line over a drum set

Violin

Joshua Bell playing "Ave Maria"

Pentatonix and Lindsey Stirling (violin) perform "Radioactive" by Imagine Dragons

Viola

Nobuko Imai

Yuri Bashmet

Cello

Yo-Yo Ma playing the prelude from Bach's Cello Suite No. 1

Steven Sharp Nelson (from The Piano Guys) playing electric cello with himself, thanks to technology and video editing

Double bass

Samuel Barber's Adagio for Strings played by double bass quartet

Jazz  bassist Christian McBride

Esperanza Spalding, bassist and singer