The research question is precise and embedded in a well-defined acoustic context, linking standing waves in closed tubes to musical-instrument applications.

The methodology is described in 15 clear, reproducible steps with specified equipment models, measurement resolutions, trial numbers and risk assessment.

Preliminary trials and justifications (e.g. moving from phone speaker to analog generator) demonstrate thoughtful method refinement.

Minor omissions in specifying Audacity’s spectral settings and sweep-function implementation leave small reproducibility gaps.

Explanations of some control measures (e.g. environmental noise, ambient conditions) are brief rather than deeply explained.

A few minor spelling and labeling inconsistencies (e.g. “amplitude” vs “sound-pressure level”) distract from clarity.

Data are communicated clearly and precisely: raw and processed tables are complete, units and significant figures are largely consistent, and graphs are well labeled.

Theoretical harmonic frequencies are presented with uncertainties and error bars, showing solid data-processing skills.

Sample calculations and multi-trial summaries support transparency in data handling.

Uncertainty analysis omits microphone dB uncertainty and oversimplifies propagation (additive rather than fractional).

Data-processing inaccuracies are evident (large ±27 Hz on first harmonic; uniform ±1 Hz uncertainty without proper standard‐deviation calculation).

Raw-data tables are cluttered with merged cells and inconsistent formatting, reducing readability.

The conclusion restates key findings with numerical gradients, R-values and percentage errors, maintaining consistency with the analysis.

Comparison to accepted scientific context (classical resonance theory and relevant literature) is relevant and partly quantitative, discussing end-correction and amplitude discrepancies.

Explicit discussion of how measurement uncertainties affect the key findings is missing.

Deeper quantitative linkage between experimental error margins and conclusions would strengthen justification.

Specific methodological weaknesses are identified (microphone range, end-correction, speaker-distance effects) and their qualitative impacts are described.

Suggested improvements (wider-range microphone, apply end-correction, extend frequency range) are realistic and directly tied to the weaknesses.

The relative impact or magnitude of each methodological limitation is not quantitatively explained.

Improvement suggestions lack prioritization or quantitative justification, remaining at a descriptive level.