# Chord Analyzer Z — Audio monitor and MIDI output

> Real-time audio analysis, MIDI output, and visual chord structure display. (iPhone/iPad app by Masanori Katsuta.)

- Source: https://appshunter.io/ios/app/chord-analyzer-z/id6445883570 (this page in markdown: same URL + `.md`)
- Developer: [Masanori Katsuta](https://appshunter.io/developer/320172788)
- Category: Music, Utilities
- Price: $1.99
- Age rating: 4+
- Requires: iOS 13.0 · 29 MB
- Languages: American English, Japanese
- Released: 2023-03-02
- Data updated: 2026-09-05
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/chord-analyzer-z/id6445883570/reviews.md

## What is Chord Analyzer Z?

◎ Newly added conversion output to MIDI file (SMF) and file sharing function.
● Equipped with "Spectrum Roll Graph" that allows you to visually check the chord structure and sound strength of singing voice and harmony of musical instruments in real time.
● The sound picked up by the built-in microphone is recorded automatically saved. If you play the file, you can reproduce and check it as many times as you like.
● You can use not only recorded files but also audio files shared from other apps.
● The pitch and strength of chords and single notes can be checked both visually and audibly using "Flush Keyboard" and "Pitch Pipe".
● Simply touch the Spectrum Roll Graph to repeat playback of the same point any number of times.
● The keyboard and the graph can be freely controlled by intuitive touch operations for zooming and scrolling.

・Because the musical tone composition of multiple instruments and singing voices such as choruses and ensembles can be viewed in real time in the form of power spectra, it is also useful for play by ear .
・By playing the pitch pipe while looking at the spectrum graph, you can hear the harmony parts and the chords of the instruments.
・Please use it for checking and practicing the sound of the harmony part of karaoke.
・You can observe the overtone components that characterize musical instruments and singing voices.
・It is also useful for chord analysis and pitch analysis of music played in the background, such as Apple Music and YouTube.

■ Features of the app
・Real-time analysis of chords and harmony
・Various and rich screen display
・Screen mode linked to device orientation
・Real-time analysis of microphone input sound
・Recording of microphone input sound
・Playback of recorded files
・Playback loop, playback jump
・Analysis of recorded files
・Play shared files
・Analysis of shared files
・Pitch pipe
・Zoom & scroll keyboard
・Spectral Roll Graph
・Flash Keyboard
・(NEW) Conversion output to MIDI file (SMF) and file sharing

● Display items (real time)
・Spectrum Roll Graph
・MIDI note number
・Power Spectrum
・Oscilloscope
・Microphone input level
・Audio level meter
・Playback progress bar

● Sound playback
・Audio files (recorded files, shared files)
・Loop playback
・Replay jump
・Pitch pipe (6 types of tones, keyboard tap)

● Precautions
・To prevent howling, the microphone input signal is automatically disabled during pitch pipe or audio file playback.
・Instrumental sounds and singing voices contain sounds of various frequencies, such as fundamental tones and integer harmonics, and this app allows you to visually observe them.

## Key features

- Real-time chord and harmony analysis
- Spectrum Roll Graph visualization
- Audio recording and playback
- MIDI file conversion and sharing
- Flush Keyboard and Pitch Pipe
- Zoom and scrollable keyboard

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/chord-analyzer-z/id6445883570/reviews.md

### 5/5 — シンプルで使いやすい

*2025-11-08*

期待していた機能はだいたい揃っていた。
ありがたい。

### 1/5 — ごみ

*2025-02-11*

期待はしてなかったレビュー無いから役に立てばいいと。
星一つもつけたく無い

## Frequently asked questions about Chord Analyzer Z

### What is Chord Analyzer Z used for?

Chord Analyzer Z is used to analyze music in real-time, displaying chord structures and sound strength visually and audibly. It can record audio, convert it to MIDI files, and help users understand harmony and pitch.

### Does Chord Analyzer Z have ads?

No, Chord Analyzer Z is ad-free, providing an uninterrupted user experience for music analysis.

### What devices does Chord Analyzer Z support?

Chord Analyzer Z is available on iPhone, iPad, and iPod, offering its music analysis features across Apple's mobile ecosystem.

### How much does Chord Analyzer Z cost?

Chord Analyzer Z is a paid application, available for a one-time purchase of $1.99.

### Can Chord Analyzer Z analyze music from other apps like Apple Music or YouTube?

Yes, Chord Analyzer Z can analyze audio files shared from other applications, including music streaming services like Apple Music and video platforms like YouTube.

### What is the Spectrum Roll Graph in Chord Analyzer Z?

The Spectrum Roll Graph is a feature that visually displays the chord structure and sound strength of singing voices and musical instrument harmonies in real-time, aiding in understanding musical composition.

### How often is Chord Analyzer Z updated?

The latest version, 1.2.0, was released on March 10, 2026, indicating active development and updates for the application.

### Is Chord Analyzer Z suitable for beginners?

Yes, its visual feedback and interactive features like the Spectrum Roll Graph and Flush Keyboard make it useful for beginners learning about chords and harmony, as well as for experienced musicians.

## Version history (last 5 releases)

### 1.2.0 — 2026-03-10

- Improved chord detection accuracy
- Updated app icon.

### 1.1.4 — 2025-07-14

Updated app title and icon.

### 1.1.3 — 2024-03-25

・Added privacy manifests.
・Added app version number to help.

### 1.1.2 — 2023-11-17

Fixed a bug where the file sharing screen would open after non-loop playback of an audio file.

### 1.1.1 — 2023-11-15

Conversion to a MIDI file (SMF) has been sped up.

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## More apps by Masanori Katsuta

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- [Ripple Camera](https://appshunter.io/ios/app/ripple-camera/id939375856)

All apps by Masanori Katsuta: https://appshunter.io/developer/320172788

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-05.*