Jeunesses Musicales International (JMI) is a global youth music NGO that supports young musicians through concerts, festivals, training, and various national and international competitions. Founded in 1945 and now active in over 40 countries, JMI works mainly with musicians up to age 30, providing platforms to perform, develop professionally, and connect with peers worldwide. While JMI is not a single, centralized high school competition, many of its national member organizations run youth music competitions, auditions, and performance programs that frequently include outstanding high school musicians. These opportunities typically target advanced young performers (often ages 14–26 or similar) and can include solo, ensemble, and genre-specific contests. Benefits include high-level performance experience, international cultural exchange, mentoring, and in some cases scholarships or professional engagements. Eligibility, age limits, and costs vary by country and specific program. Because JMI’s activities are organized through independent national sections, interested high school students should consult their country’s Jeunesses Musicales organization via the JMI website to find competitions and programs suited to their age, level, and instrument.