Your Honor, the student respectfully submits this pre-unit report. Issue: Proportional reasoning applied to sound frequency and musical intervals. Facts: Student produced neat Cornell notes, accurately labelled monochord sketch showing string and nodes, and used budding scientific and musical terms. Argument: Halving string length doubles frequency - a 2:1 ratio - yielding an octave; students named ratios, converted frequencies to ratio notation, and explained how physical properties create pitch. Historical context: Pythagoras's monochord observation links simple number ratios to pleasing intervals. Assessment: Short written responses, a correctly labelled diagram, and verbal explanation demonstrated proficiency. Impact: This outcome supports future composition, analysis and confident performance, and encourages practice converting frequencies into ratios. Relief sought: Recognition of proficient/exemplary mastery aligned to ACARA v9, with interdisciplinary ties to measurement, proportional reasoning and music history. Respectfully submitted. Counsel recommends scaffolded tasks, formative feedback and practice with frequency calculations and diagram labelling to sustain growth.