DMP'25 week 04 by Anvita Prasad

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+---
+title: "DMP '25 Week 04 Update by Anvita Prasad"
+excerpt: "Completion of target pitch mode and implementation of manual cent adjustments pie menu"
+category: "DEVELOPER NEWS"
+date: "2025-06-29"
+slug: "2025-06-29-DMP-25-AnvitaPrasad-week04"
+author: "@/constants/MarkdownFiles/authors/anvita-prasad.md"
+tags: "dmp25,sugarlabs,week04,AnvitaPrasad"
+image: "assets/Images/c4gt_DMP.png"
+---
+
+<!-- markdownlint-disable -->
+
+# Week 04 Progress Report by Anvita Prasad
+
+**Project:** [Music Blocks - Improve Synth and Sample Features](https://github.com/sugarlabs/musicblocks/issues/4539)  
+**Mentors:** [Walter Bender](https://github.com/walterbender)  
+**Assisting Mentors:** [Devin Ulibarri](https://github.com/pikurasa)  
+**Reporting Period:** 2025-06-23 - 2025-06-29  
+
+---
+
+## Goals for This Week
+- Complete and refine target pitch mode implementation
+- Implement manual cent adjustment functionality and interface
+- Research icons for chromatic and target pitch mode
+- Conduct comprehensive testing with various audio sources and instruments
+- Research different tuning systems
+
+---
+
+## This Week's Achievements
+
+1. **Dual-Mode Tuner Implementation**
+   - Completed target pitch mode implementation with enhanced functionality
+   - Integrated target pitch selector with pie menu interface
+   - Implemented logic for precise pitch matching and deviation calculation
+   - Added comprehensive display for octave, semitone, and cent deviations
+   - Gathered and incorporated feedback for interface refinements
+
+![](assets/Images/tuner-interface-week4.png)
+
+2. **Manual Cents Adjustment Development**
+   - Designed and implemented an intuitive pie menu for cent adjustments with:
+     - Center Area (Controls):
+       * Grey circular area with three buttons
+       * "+" button for positive values
+       * "-" button for negative values
+       * "×" button for menu exit
+     - Inner Wheel (Fine Adjustments): Numbers 1-10
+     - Middle Wheel (Medium Adjustments): Numbers 20-50
+     - Outer Wheel (Large Adjustments): Numbers 60-100
+
+3. **Testing Progress**
+   - Conducted initial testing with various audio sources
+   - Identified areas for improvement in pitch detection
+   - Created a test suite for tuner accuracy verification
+
+---
+
+## Challenges & How I Overcame Them
+
+- **Challenge 1: Event Bubbling in Pie Menu**  
+  The pie menu's nested event listeners for note, accidental, and octave selection were triggering multiple unintended actions due to incorrect event propagation.  
+  **Solution 1:**  
+  Added event.stopPropagation() at the appropriate event handlers and restructured the event listener hierarchy to ensure events were captured at the correct level only.
+
+- **Challenge 2: State Management Complexity**  
+  Managing three interdependent states (note, accidental, octave) in the tuner widget led to synchronization issues and undefined states during updates.  
+  **Solution 2:**  
+  Implemented a centralized state update method that handles all three components atomically and validates the complete state before triggering any dependent calculations.
+
+---
+
+## Key Learnings
+
+- Gained deep understanding of Music Blocks' pitch pie menu interface and its implementation patterns
+- Learned about various tuning systems including Equal Temperament, Pythagorean, and Just Intonation
+
+---
+
+## Next Week's Roadmap
+
+- Implement fully functional tuner with comprehensive features
+- Complete and refine manual cent adjustment functionality
+- Conduct extensive testing with various audio sources and instruments
+- Consider implementation of different tuning systems
+- Make fine refinements to tuner interface and functionality
+- Write blog post for Week 05
+
+---
+
+## Resources & References
+
+- [Web Audio API Documentation](https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API)
+- [Different Tuning Systems](https://www.musiccrashcourses.com/lessons/tuning_systems.html)
+- [Tuning Systems and Equal Temperament](https://www.earmaster.com/music-theory-online/ch06/chapter-6-2.html)
+
+---
+
+## Acknowledgments
+
+Thank you to my mentors, the Sugar Labs community, and fellow contributors for ongoing support and valuable feedback on the new features.
+
+---