Klangio is an AI music-transcription suite for turning recorded or uploaded audio into editable notation. Users can record a performance, upload MP3, WAV, or other recordings, paste a YouTube link, or scan printed sheet music with dedicated tools. The browser-based Transcription Studio detects melody, chords, rhythm, and harmony, supports multi-instrument arrangements, and provides sheet music, piano roll, and guitar TAB views. A separate plugin supports transcription inside compatible digital audio workstations. Instrument-specific apps cover piano, guitar and bass, singing, drums, violin, brass, and woodwinds. Results can be corrected in Edit Mode and exported as PDF sheet music, MusicXML, MIDI, or Guitar Pro for notation software and DAWs. Scan2Notes, Melody Scanner, and Song Search add sheet-music scanning, arrangement generation, and song analysis.