Casio CTK-501 Musical Information System

Brand: Casio®

Model: CTK-501 "Musical Information System"

Key Configuration: 61 Full-Size Keys

Polyphony: 12-Note Max Polyphony

Onboard Sound Library: 100 Tones, 100 Rhythms, and 100 Song Bank Tunes

Power Specifications: Requires (6) D-size batteries or a standard 9V DC AD-5 AC adapter (not included).

Condition Matrix: Used

• Mechanical & Functional Status: Good Condition (Fully tested, all keys trigger, speakers project clearly, and the LCD screen works exactly as expected).
• Cosmetic Status: Good Condition (Shows standard, light cosmetic signs of previous handling; overall clean casing and keybed).Included Accessories: Detachable OEM Sheet Music Rest

Up for sale is a pre-owned Casio CTK-501 61-Key Portable Keyboard in good condition, complete with its original detachable sheet music stand. Widely loved by music students, beginners, and home hobbyists, the CTK-501 features Casio’s famous Musical Information System (LCD). This interactive digital screen provides visual feedback by displaying the keys, chords, and notes you are playing in real-time, making it an incredible tool for learning finger placements and piano fundamentals.

With 61 full-size keys, a library of 100 authentic tones (ranging from grand pianos to synthesizers), and 100 built-in rhythms to jam along with, this keyboard offers a fun, lightweight, and space-saving setup for your living room, bedroom, or classroom.

Detailed Diagnostics & Condition Report

• Excellent Functional Health: This keyboard has been thoroughly tested. All 61 keys are level, responsive, and trigger their notes perfectly. The stereo speakers produce clear, distortion-free sound.
• Bright LCD Screen: The central "Musical Information System" display is fully legible with strong, even contrast.
• Cosmetics: Shows very light signs of previous handling and shelf wear typical of a pre-owned keyboard, but it has been thoroughly cleaned and sanitized. There are no cracks in the plastic housing.
• Power Source Reminder: Please note that an AC adapter and batteries are not included in this listing. To play, you can easily use six standard D-size batteries for wireless, on-the-go mobility, or plug in a standard 9V Casio AD-5 power supply.

Key Musical Features

• 61 Full-Size Keys: Replicates the physical footprint of standard piano keys, helping developing players build proper finger spacing and muscle memory.
• Interactive LCD Display: Visually displays keyboard keys, a music staff with active notes, metronome tempo, selected voices, and chords to streamline the learning process.
• Auto-Accompaniment & Song Bank: Features 100 rhythms and 100 pre-programmed songs with controller buttons (start/stop, synchro/fill-in) to let you play with a full backing band.
• Headphone Jack: Features a rear 1/4" output jack, allowing you to plug in headphones for silent practice at any hour of the night.

What’s Included

• (1) Casio CTK-501 61-Key Portable Keyboard
• (1) Detachable Casio Plastic Music Rest (Sheet Music Stand)
• (Note: Stand, headphones, power adapter, and batteries are shown for descriptive purposes only and are not included).

Pro-Tier High-Protection Packing & Shipping

• Keybed & Interface Protection: To protect the keys, sliders, and LCD screen from impact or shifting during transit, a custom high-density foam shield will be secured directly over the control face.

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