Band 5+: The graph shows sales of songs from three musical genres during a period of ten years.

The report addresses the task by describing the main trends in the sales of three musical genres over the ten-year period. It correctly identifies that Korean Pop increased significantly, Jazz increased slightly, and Pop declined. However, there are several inaccuracies and omissions: the data for Jazz is misreported (e.g., starting at 80 and ending at 110, whereas the actual values are 80 and 130), and the description of Pop's decline is imprecise (it states it reached around 100 in 2017, but the actual value is 125). Additionally, the report lacks a clear comparison of the three genres at key points, and some statements are confusing (e.g., 'pop has the lowest sales' is incorrect; Jazz has the lowest). The overall structure is acceptable, but the inaccuracies and lack of precise data detract from the task achievement. To improve, ensure all data points are accurately reported and provide a clearer overview of the trends and comparisons.

The report has a clear overall structure with an introduction and body paragraphs, but the flow is often disrupted by unclear referencing and abrupt transitions. For example, the phrase 'On the one side' and 'On the other hand side' are used incorrectly, and the progression of ideas within paragraphs is not always logical. The final paragraph mixes information about Korean Pop and Jazz, making it hard to follow. To improve, use clearer paragraphing (e.g., one paragraph per genre) and ensure each paragraph has a clear topic sentence. Also, use cohesive devices more accurately to link ideas smoothly.

The vocabulary is adequate for the task but limited in range and precision. There are several word choice errors, such as 'edged' (likely meant 'increased'), 'begaining' (beginning), 'loewst' (lowest), and 'approxematly' (approximately). The report also uses informal or inaccurate phrases like 'cross the pop' and 'reached to peaked'. To improve, use a wider range of academic and precise vocabulary (e.g., 'experienced a steady rise', 'overtook', 'peaked at'), and ensure correct spelling and word forms. Avoid informal language and aim for more sophisticated lexical control. Boost vocabulary complexity to elevate the overall score.

The report contains numerous grammatical errors that affect clarity and accuracy. There are issues with verb tense consistency (e.g., 'has been declined' should be 'declined'), subject-verb agreement (e.g., 'the sales of pop was' should be 'were'), and incorrect use of articles and prepositions. Sentence structures are often repetitive and lack variety. To improve, practice using a range of complex structures (e.g., subordinate clauses, passive voice) and ensure subject-verb agreement and correct tense usage. Proofreading for punctuation and spelling is also essential to enhance accuracy.