Play piano with 88 keys, customize key labels, and transpose or tune the instrument. Access authentic grand piano sound samples. Also play guitar, bass, harp, marimba, and music box. Update to latest Piano technology for enhanced features.
Learn Objective-C with structured tutorials covering basics and advanced concepts. Explore language fundamentals, object-oriented principles, and integration with Apple's Cocoa and Cocoa Touch frameworks.
Collect and annotate voice data in multiple languages including Mandarin, local dialects, Uyghur, English, Korean, and Vietnamese. Gather and correct text data such as command words, names, place names, and song titles.
