Shanghai Lingzhuo Information Technology Co., Ltd.
Play piano with smart sheet music
Learn piano with access to professional sheet music in various genres and difficulty levels. Download and print high-quality scores with line and simplified notation. Use real-time error detection to identify and correct mistakes during practice.
Learn Russian with pronunciation guides, vocabulary lessons, and dialogue practice. Access translation tools, a bilingual dictionary, and audio content for listening and speaking.
Learn Korean with real pronunciation and vocabulary
Learn basic Korean with pronunciation guides, vocabulary, and dialogues. Practice with real human voices and audio lessons. Access multiple translation tools and dictionaries. Listen to Korean language programs and articles.
IPA "Input IPA symbols with dedicated keys for consonants, vowels, and diacritics. Access all symbols from the 2020 IPA chart and most from the 2016 extIPA chart. Supports Unicode symbols and organizes keys by categories."
Play piano using a grid-based key layout. Select MIDI voices and adjust scales. Enable sticky keys for practice. Adjust note duration and velocity. Save and load custom configurations.
Learn Asian country locations, capitals, and flags through interactive gameplay. Zoom, scroll, and tap to explore maps. Track progress with a star system. Unlock full features with an in- purchase. No multiple choice or keyboard input.
Manage work and travel applications to the United States. Submit documents, make payments, track program status, and apply for work visas. View payment history and receive program updates through the .
Learn concepts through daily and insights. Read about performance optimizations, coding conventions, and interview questions. Access code examples and stay updated on language trends.
Math offers interactive for practicing multiplication, fractions, and algebra. Students solve problems through challenges and receive instant feedback. AI helps explain difficult concepts and provides step-by-step solutions.