From lively street festivals to the blaring stereos of passing cars, music is a mainstay in urban environments. This series of musical-themed street art, including graffiti by the likes of MTO and fun interactive projects, celebrate that connection. Check out stairs and crosswalks painted to look like pianos, painted stereos that you can play with your iPhone and house-sized art installations with musical instruments built into the walls.

Play Me, I’m Yours

(image via: simonerene)

A 2010 installation in New York City saw 60 pianos placed in public locations, emblazoned with the words ‘Play Me,  I’m Yours’. The two-week city-wide program kicked off at the Make Music New York festival with the pianos decorated by local artists, students and volunteers. The project gave everyone from professional pianists to people who have never touched keys before a chance to play in public.

Piano Stairs

(image via: we heart it, pianostair.com)

Staircases just beg to be transformed into the keys of a piano. Isn’t it amazing how just a little bit of black and white paint can make a street scene so much more lively?

QRadio: Interactive Stereo

(image via: wonderfully lost)

This awesome public art project by the Berlin-based SWEZA enables you to use a smartphone as a cassette tape to make a painted boom box play music. Interactive, imaginative and fun.

Sonic Graffiti

(image via: create digital music)

Similarly high-tech, audio graffiti can involve placing magnetic tape on walls, using spray cans to ‘paint’ and ‘play’ sound. Thanks to a tutorial at Instructables, you can even create your own sonic graffiti to transmit and play audio messages to other people in public restrooms. Just what you’ve always wanted.

Musical Notes

(images via: fotopedia)

Sweet and simple, a pair of musical notes on a blank white wall send a message without making a sound.

Piano Steps

(images via: wpt9)

Piano stairs on a smaller scale, this installation takes advantage of the shape of white tiles on a stoop with just a few pieces of black tape.

Iconic musicians by MTO

(images via: this blog rules)

Talented street artist MTO brings musical legends alive on brick walls and other urban surfaces in a series that includes Mick Jagger, Bob Dylan and James Brown.

Dithyrambalina in New Orleans

(images via: the l magazine)

Bringing a little magic to the streets of New Orleans, ‘Dithyrambalina’ is a project orchestrated by Brooklyn-based street artist Swoon, otherwise known as Callie Curry. Dithyrambalina is a house-sized musical instrument inspired by the architecture of Creole cottages in the Bywater neighborhood. Local musicians and artists created instruments that were built in to the shack’s walls, floors and ceilings for a temporary public art installation.

Piano Wall in Cairo

(images via: your heart’s on the left)

Covering an explosion of a positive sort on the streets of Cairo – in the form of art – blogger Your Heart’s on the Left notes the optimistic message conveyed by this mural, a piano painted on a bullet-scarred wall. “This mural recently appeared in Cairo a few blocks away from Tahrir Square. On a wall scarred by street fights–punctured with bullet holes and charred by molatov cocktails–a piano has emerged.”

Le Silence, Made of Musical Notes

(images via: my modern met)

The negative space between musical notes fittingly spells out ‘Le Silence’ in this creative mural by Milan-based street artist Eme, located in Strasbourg, France.

Chopin Crossing

(images via: flourish creative)

Street crossings in Warsaw, Poland were transformed into stretches of piano keys in celebration of Chopin’s 200th birthday in 2011, a subtle yet powerful manipulation of the urban landscape.

Turntables by MTO

(image via: design you trust)

Garage doors become twin turntables seen from above in this perspective-shifting piece by street artist MTO.

Free Air Guitars!

(image via: neatorama)

In a hilarious bit of guerilla marketing, radio station Rock 96.3 in Glasgow, Scotland set up an empty guitar rack with a sign above it reading ‘Free Air Guitar – Please Take One.’