# Chord Sequencer > App for creating and arranging chord progressions with custom playback. (iPhone/iPad app by Hiroyuki Yamamoto.) - Source: https://appshunter.io/ios/app/chord-sequencer/id1446997306 (this page in markdown: same URL + `.md`) - Developer: [Hiroyuki Yamamoto](https://appshunter.io/developer/1438348184) - Category: Entertainment, Utilities - Price: Free - Rating: 4.80/5 from 4 App Store ratings · 5 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 · 5 MB - Languages: American English, Japanese - Released: 2019-01-03 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/chord-sequencer/id1446997306/reviews.md ## What is Chord Sequencer? 1. 特徴 コードはルート音、3rd/5th/7th、テンションの組み合わせで選択します。 組み合わせの制御は、最低限しか行っていないため、通常では使われないコードを定義することもできます。 コードを並べてコード進行を作成します。 コード進行は、コード１つを四分音符として再生して、音を確認することができます。 2. 機能 2.1 コード入力 　コードはルート音、3rd/5th/7th、テンションの組み合わせで選択します。 組み合わせにより、自由に和音を作ることができます。 2.2 コード進行 　画面上段のコード進行に配置されたコードはドラッグ＆ドロップで移動で並び替えを変更できます。 2.3 再生設定 　コード進行を再生する時のテンポ、音域、音量を変更できます。 テンポは4刻みとなります。 音域は、最低音をC3、C4、C5　を選べます。 2.4 セクション設定 　イントロ、Aメロ、Bメロ、サビなどの単位でセクションを作ることができます。 2.5 演奏アレンジ イントロ、Aメロ ２回、Bメロ、サビ×２回 など、セクションの演奏順、演奏回数を定義することができます。 2.6 コード進行の保存、読み込み 　作成したコード進行は名前をつけて保存できます。 また、保存したコード進行を読み込むことができます。 3. 制約事項 ・コードの音の長さは四分音符のみとなります。 ・コード進行の表示は、１行４つ固定となります。 ## Key features - Flexible chord input with custom combinations - Drag-and-drop chord progression arrangement - Adjustable tempo, range, and volume - Section creation for intros, verses, and choruses - Define playback order and repetition counts - Save and load chord progressions ## Recent user reviews (5 of 5) All indexed reviews: https://appshunter.io/ios/app/chord-sequencer/id1446997306/reviews.md ### 5/5 — Great *2024-10-10* Recently started working again for me, not sure why it didn’t work for me for a while. One of my favorite apps of all time, super simple way to write music. **Developer response:** Thank you for your review and problem report. I will check defects and fix any issues. I’m sorry for slow response. Unfortunately no sounds issue was not found in my environment. Therefore I couldn’t update. ### 1/5 — Useless *2023-08-03* No audio output. I sequence my chords a press play but no sound comes out. Useless! ### 1/5 — Great, but no longer makes sound for me - Still an issue *2023-05-08* I used to use this app all the time. It’s the best way to get simple ideas written down. However, a while ago the app stopped making sound for me entirely. Playing a song will show the keyboard playing the chords, but no sound comes out. Note: this review was original replied to in January, I am writing this review in may to update the score from 4 stars to 1 star to hopefully get a response from the developer. Thank you **Developer response:** Thank you for your review and problem report. I will check defects and fix any issues. I’m sorry for slow response. Unfortunately no sounds issue was not found in my environment. Therefore I couldn’t update. ### 4/5 — Great, but no longer makes sound for me *2022-12-10, version 1.3.2* I used to use this app all the time. It’s the best way to get simple ideas written down. However, a while ago the app stopped making sound for me entirely. Playing a song will show the keyboard playing the chords, but no sound comes out. ### 4/5 — very useful, but really needs slash chord support *2022-03-01* i have a zillion songwriting apps, but i like this one for its simplicity, which makes it fast to sketch progression ideas. however, it lacks support for slash chords, eg., Am/G, which denotes the bass note to play with the chord (i.e.l “Play chord Am and note G in the bass”), which is very limiting. Please add slash chords! **Developer response:** Thank you for your comment. I will plan enhancement function. ## Frequently asked questions about Chord Sequencer ### What is Chord Sequencer? Chord Sequencer is a free application designed for creating and arranging chord progressions. It allows users to define custom chords, arrange them into progressions, and customize playback settings like tempo and range. ### Does Chord Sequencer have ads? No, Chord Sequencer does not contain advertisements. It is a completely free application without any ad interruptions. ### What devices does Chord Sequencer support? Chord Sequencer is currently supported on iPhone devices. It is designed for mobile use on iOS. ### How often is Chord Sequencer updated? The latest version of Chord Sequencer is 1.4.1, last updated on July 16, 2025. Updates are released periodically to improve functionality and add features. ### What is the age rating for Chord Sequencer? Chord Sequencer has an age rating of 4+, making it suitable for users of all ages. Its content is appropriate for a general audience. ### Can I save my chord progressions in Chord Sequencer? Yes, Chord Sequencer allows you to save your created chord progressions by giving them a name. You can also load previously saved progressions for further editing or use. ### What are the limitations of Chord Sequencer? The current limitations of Chord Sequencer include that chord lengths are fixed to quarter notes only, and the chord progression display is fixed to four chords per line. ### What is the user rating for Chord Sequencer? Chord Sequencer has a high user rating of 4.8 stars based on 4 ratings. This indicates a very positive reception from its users. ## Version history (last 5 releases) ### 1.4.1 — 2025-07-16 修正内容 ・最低バージョンをiOS17でリビルド ・テンポを1刻みで設定できるように修正 ### 1.4.0 — 2023-06-19 機能追加 ・ボイスリーディング オプションを追加しました。 　ルート/3rd/5thの3音のみを考慮した簡易的なロジックで音の移動が最小となるように再生時に調整されます。 ### 1.3.3 — 2023-01-03 ・演奏中に設定画面でオクターブを変更するとクラッシュする不具合を修正 　（演奏中は設定変更ができないようにしました） ### 1.3.2 — 2022-06-26 ・以下の不具合を修正 　- メジャー、マイナーのコードで 11th を選択できるように修正 　- b5/#5の設定情報も保存されるように修正 　- ファイル名に「/ ¥」を含む場合、「_」(アンダーバー)に置き換えて保存するように修正 　- コード変更モード中に、コードを削除した場合、変更モードを解除するように修正 　- ダークモードでも文字が読めるように配色を標準配色に変更 ### 1.3.1 — 2022-03-14 修正点 ・設定パラメータを追加 ・バグ修正 ## Apps similar to Chord Sequencer | App | Rating | Price | Category | | --- | --- | --- | --- | | [NugSmasher®](https://appshunter.io/ios/app/nugsmasher/id1501395880) | 3.5 (23) | Free | Entertainment | | [Polyrhythm - Relaxing Sounds](https://appshunter.io/ios/app/polyrhythm-relaxing-sounds/id6462398544) | 2.4 (7) | Free | Entertainment | | [pib - pictureinbottle](https://appshunter.io/ios/app/pib-pictureinbottle/id1475076538) | — | Free | Entertainment | | [HumanController](https://appshunter.io/ios/app/humancontroller/id912264372) | — | Free | Entertainment | | [TEXT Animation Banner](https://appshunter.io/ios/app/text-animation-banner/id1504239947) | 3.7 (3) | Free | Entertainment | | [My aibo](https://appshunter.io/ios/app/my-aibo/id1321276446) | 3.2 (500) | Free | Entertainment | ## More apps by Hiroyuki Yamamoto - [重み付け割り勘計算](https://appshunter.io/ios/app/id1438348185) - [WT Manager](https://appshunter.io/ios/app/wt-manager/id1477740550) All apps by Hiroyuki Yamamoto: https://appshunter.io/developer/1438348184 --- *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 2026-06-10.*