InteractiveOctave Period TrainerLearn how octaves affect waveform period through interactive visualisation and drawing practice20-25 minutesOpen →
InteractiveWaveform Drawing ExplorerPractice drawing waveforms at different octaves. See the reference waveform, draw your version, and compare instantly — no submission required.10-20 minutesOpen →
InteractiveBPM & Delay Time CalculatorDerive delay times in milliseconds from BPM and note value — the way Edexcel expects on paper, the way every plugin does it under the hood. Live calculator, audible metronome with synced echo, exam-style practice with worked solutions, and a genre-paired BPM reference.15-25 minutesOpen →
PracticeWaveform Drawing AssessmentRevision drill on period, frequency, octave, polarity and phase cancellation — matched to the C4 worksheet question types from 2019, 2023, 2024 and 2025 papers.8-12 minutesOpen →
RevisionLevels & Metering AssessmentTest your understanding of the dB scale, peak vs RMS metering, VU meters, and clipping — short MCQ quiz with a clickable VU meter reading task.5-10 minutesOpen →