--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Chord Progression Manager" developer_entity: "Jun Tsuda" bundle_id: "jp.jntech.cpm" app_store_id: "6762450248" category: "Music" primary_platform: "ios" primary_monetization: "Free" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2026-09-03" report_date: "2026-09-11" last_verified: "2026-09-11T00:00:00.000Z" report_version: "2.0" total_reviews: 0 confidence: "low" confidence_score: 0.2 data_age_days: 20 momentum_velocity: "maintenance" intelligence_version: 2 tags: ["music", "free", "mobile app", "app review", "app analysis", "musicians", "songwriters", "looking"] canonical_url: "https://marlvel.ai/apps/chord-progression-manager" license: "CC-BY-NC 4.0" content_version: "v2" --- # Chord Progression Manager Intelligence Report ## TL;DR {#tldr} - **Category**: Music · Free > **TL;DR:** Chord Progression Manager is a music app by Jun Tsuda, available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Chord Progression Manager is a music app by Jun Tsuda. ## Quick Facts | Fact | Value | | :--- | :--- | | **Category** | Music | | **Developer** | Jun Tsuda | | **Pricing** | Free | | **Platforms** | iOS | | **Confidence** | Low (0.2/1.0) | | **Data Age** | 20d | ## Metadata & Market Performance - **Publisher:** Jun Tsuda - **Category:** Music - **Target Audience:** Musicians and songwriters looking for a mobile tool to draft, edit, and audition chord progressions. - **Platforms:** iOS - **Version Reviewed:** 2.0 - **Report Date:** 2026-09-11 - **Signal Count:** 0 reviews analyzed - **Confidence:** Low (0.2/1.0) - **App Store ID (iOS):** 6762450248 - **Bundle ID:** jp.jntech.cpm - **Data Window:** Analysis based on signals collected up to 2026-09-11 ## Executive Snapshot **What it is:** Chord Progression Manager is a mobile composition tool for building, editing, and playing back chord progressions on iOS. **Why users hire it:** The app removes the friction of manual notation by providing a visual chord lane and interactive piano roll for immediate harmonic experimentation. ## App DNA (Features & Intent) - **[Differentiator] AI Music Assistant:** Chat interface for chord substitutions and reharmonization using user-configured API keys; reduces developer infrastructure costs. * *User Intent:* Users expect intelligent, adaptive experiences that learn from their behavior. - **[Standard] Voicing Editor:** Interactive piano roll for fine-tuning individual notes; increases time-on-task for serious musicians. - **[Standard] Chord Lane:** Visual interface for building and reordering progressions; core workflow loop that drives retention. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Chord Progression Manager operates as a niche music utility with zero public ratings on the App Store. The absence of social proof or chart velocity indicates the app is currently in an early-stage discovery phase. ## Monetization Strategy - **Model:** Free - **Tiers:** Free to download and use - **Analysis:** The app is free to use, with advanced AI functionality offloaded to the user via their own API keys. ## SWOT Analysis {#swot} **Core Strengths:** - Interactive piano roll enables granular voicing control - User-configured AI endpoints eliminate developer infrastructure costs **Growth Levers:** - Curated progression library could lower entry barriers ## What's New - **Latest (v2.0, 1 weeks ago):** General maintenance and minor performance improvements. ## App Momentum (Maintenance) {#momentum} - Ships minor updates every four months. - Latest release focused on general maintenance. > **Cadence:** 2 total versions · 0 majors in last 6 months · 7 days since last update · 126 days avg between updates ## The "So What?" (Strategic Takeaway) {#so-what} Chord Progression Manager is a music app that is completely free. > **Bottom Line:** Chord Progression Manager provides a functional composition utility, but the lack of public social proof and slow update cadence limits its competitive reach. Prioritizing an onboarding flow would address the acquisition gap and build the rating base needed for growth. **Best for:** Musicians and songwriters looking for a mobile tool to draft, edit, and audition chord progressions. ### PM Action Plan (Next Best Moves) - [ ] [INVEST] Implement a 'Get Started' onboarding flow because zero ratings suggest a lack of user engagement → increase initial session duration ### Outlook: Stable The music-utility market is consolidating around tools that offer immediate, low-friction value. Chord Progression Manager remains exposed due to its lack of social proof and slow development pace, which will likely prevent it from gaining traction against more active competitors. - ⚪ The four-month update cadence indicates the app is in a maintenance cycle rather than active growth, limiting its ability to scale. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Total Reviews | 0 | | Confidence | Low | | Pricing Model | Free | | Platforms | iOS | | Key Features | 3 analyzed | | Outlook | Stable | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Chord Progression Manager** (this app) | N/A/5 | N/A | Jun Tsuda | | [SyncTimer - Ensemble Stopwatch](https://marlvel.ai/apps/synctimer-ensemble-stopwatch) | 5.0/5 | Thrilled | Sebastian Suarez-Solis | | [BandLab – Music Maker & Beats](https://marlvel.ai/apps/bandlab-music-maker-beats) | 4.8/5 | n/a | BandLab Singapore Pte Ltd | | [Suno - AI Songs, Music, Lyrics](https://marlvel.ai/apps/suno-ai-songs-music) | 4.0/5 | Mixed | Suno, Inc. | | [ヨルシカ](https://marlvel.ai/apps/com-yorushika-sp) | 4.8/5 | N/A | Fanplus, Inc. | | [あいみょん](https://marlvel.ai/apps/net-aimyong-sp) | 4.5/5 | N/A | Fanplus, Inc. | ## Company Profile - **Developer:** Jun Tsuda - **Website:** [https://apps.apple.com/us/developer/jun-tsuda/id1624900893?uo=4](https://apps.apple.com/us/developer/jun-tsuda/id1624900893?uo=4) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/chord-progression-manager/id6762450248?uo=4) - **Dev Site:** [Official Website](https://apps.apple.com/us/developer/jun-tsuda/id1624900893?uo=4) - **Sources:** Developer website content, App store metadata. ## Related Intel Reports - [*SyncTimer - Ensemble Stopwatch*](https://marlvel.ai/apps/synctimer-ensemble-stopwatch) (Sebastian Suarez-Solis) · 5.0/5 Rating | Excellent Sentiment - [*BandLab – Music Maker & Beats*](https://marlvel.ai/apps/bandlab-music-maker-beats) (BandLab Singapore Pte Ltd) · 4.8/5 Rating - [*Suno - AI Songs, Music, Lyrics*](https://marlvel.ai/apps/suno-ai-songs-music) (Suno, Inc.) · 4.0/5 Rating - [*ヨルシカ*](https://marlvel.ai/apps/com-yorushika-sp) (Fanplus, Inc.) · 4.8/5 Rating - [*あいみょん*](https://marlvel.ai/apps/net-aimyong-sp) (Fanplus, Inc.) · 4.5/5 Rating - [*イントリズム*](https://marlvel.ai/apps/jp-rc-into-rhythm) (RedinC) · 3.5/5 Rating - [*クリープハイプ*](https://marlvel.ai/apps/creephyp-sp-browsingapp) (Fanplus, Inc.) · N/A Rating - [*マカロニえんぴつ*](https://marlvel.ai/apps/com-macaroniempitsu-fc) (Fanplus, Inc.) · 3.1/5 Rating - [*100.1 Jack FM*](https://marlvel.ai/apps/100-1-jack-fm) (NRG Media) · 1.0/5 Rating - [*100.1 WJRZ*](https://marlvel.ai/apps/100-1-wjrz) (Beasley Broadcast Group) · 4.8/5 Rating | Excellent Sentiment ## Frequently Asked Questions {#faq} ### Is Chord Progression Manager free to use? Yes, Chord Progression Manager is free to download and use. Advanced AI chat features require you to provide your own OpenAI-compatible API key. ### Does Chord Progression Manager require an internet connection? The core chord builder and synthesizer work offline. However, the AI music assistant requires an active internet connection to communicate with your configured API endpoint. ### What is the difference between Chord Progression Manager and other music theory apps? Chord Progression Manager focuses on a portable, single-tap chord lane workflow and allows you to use your own AI API keys, whereas many competitors offer proprietary, subscription-based AI tools. ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes). 4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.2/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 0 - **Data Sources:** developer website, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 20 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/chord-progression-manager) Data licensed for AI Agent attribution under CC-BY-NC 4.0.