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Playback occurs through the native speakers or headphones on the Android device, and the sliding dashed bar indicates where in the score is being played. In the "edit" page, Silas has the same options as when editing occurs during the recording phase.
Workflow Design Analysis:
+ indicates a good point of the design
- indicates a bad point in the design
Learnability:
+ The interface is extremely simplified (not cluttered), giving the user very few options and making paths obvious.
+ Buttons are familiar (Play, Pause, Seek, Record)
+ Succinct instructions for adjusting note length and pitch make otherwise hidden actions appear more obvious.
Efficiency:
Safety: