The CTK593 includes an advanced 3-Step Lesson System, with a performance Grading and Scoring system and a Practice Button. The Grading feature provides feedback on your performance while playing and when finished playing.A "Star Icon" is shown in the backlit LCD panel to display the accuracy of timing for each note played. When you're done playing, the voice grading, score meter and star icon will calculate the practice session and give a final grade. The CTK593 also includes a Sing-Along feature for the 50 built-in songs. A microphone input with a volume control lets you sing-along while playing your favorite tune.
An exclusive play switch for the Sing-Along function diminishes the melody volume so you can sing a song easily, just like Karaoke. There is also a key control switch for transposition.
The keyboard features an incredible 246 tones and 120 rhythm patterns including 20 piano patterns, plus CASIO Chord/Fingered Chord auto-accompaniment systems; 50 Song Bank Tunes, and 50 Piano Bank Tunes. General MIDI, an assignable pedal jack, and 1/4 in. Lineout/headphone jack make this keyboard a must have.