Why was dance difficult to preserve before photography and dance notation developed?

Dance is considered one of the most ephemeral art forms because, historically, it lacked a reliable, comprehensive method for recording choreography. Before the development of effective dance notation and photography in the late 19th and 20th centuries, the survival of a dance work depended almost entirely on oral tradition or memory.123

This reliance on memory presented several significant challenges to preservation:

• Accumulative Distortion: Without a fixed record, dances were subject to unintentional changes over time. As different dancers performed the same material, personal mannerisms or mistakes were often picked up and exaggerated, leading to a gradual loss of the original choreography.43
• Broken Traditions: When cultural or social traditions were interrupted, dances often changed radically or disappeared entirely because there was no written score to reference for an authentic revival.3
• Limited Documentation: While some early systems existed—such as verbal abbreviations during the Renaissance or 17th-century track-drawing systems—these were often inadequate. They frequently failed to capture complex upper-body movements, timing, or the dynamic quality of the performance, making it impossible to fully reconstruct works from the past.2

Consequently, there is no complete record of any ballet choreographed before the 19th century.2