Chromatik:在线音乐教学和训练平台是一个针对专业的乐手、乐团、合唱团及音乐教学的机构，乐手可以上传、同步并共享自己的 pdf 版乐谱，直接把乐谱收纳到 iPad 里用不着带纸质乐谱了。
Chromatik拥有它有网页版和 iPad 应用，乐手在练习时还能用它来录音，将录音分享给自己的老师 / 朋友就能收到及时的评价和反馈。对于音乐老师而言，可将 Chromatik 用作是跟踪并记录学生练习情况的工具。在乐谱上做的标记也是可同步到云端的。
Matt Sandler is a professional musician and entrepreneur. He has extensively toured the West Coast, taught woodwinds in the Los Angeles Unified School District, and was recently a lecturer in music technology at UCLA. However, performing and teaching music was not always his gig — Matt’s held A&R and technology roles at KROQ 106.7FM and Capitol Records.
And from there, he was on the early team of the social marketing startup CitizenNet, leading business development and sales. Blending his experiences in technology and education, Matt founded Chromatik to redefine how people practice, perform, and learn music. Matt holds a BA in Saxophone Performance from UCLA and was named a CA Distinguished Arts Scholar by Governor Arnold Schwarzenegger.