Street organs are mechanical musical instruments that produce music by using a series of pipes and a hand-cranked mechanism. Often found in public spaces, these organs play pre-programmed tunes, providing entertainment to passersby. They are typically adorned with colorful decorations and can vary in size, from small portable versions to larger, more elaborate setups. These instruments have a rich history, dating back to the 19th century, when they were popular in Europe. Street organs are often associated with carnivals, festivals, and street performers, creating a nostalgic atmosphere and evoking memories of a bygone era.