Logo Concept: This logo concept abstracts the essence of percussion and rhythm. The central, slightly curved vertical line symbolizes the initial strike of a drumstick or the momentary impact on a drumhead. The two radiating, concentric arcs represent the resulting sound waves, rhythmic pulse, or vibration that emanates from that impact. The increasing radius of the arcs subtly suggests the propagation of sound and energy. The design avoids literal drums or drumsticks, instead focusing on the fundamental principles of rhythm and movement. The minimalist, flat aesthetic with neutral tones (dark grey on off-white) ensures a professional, artistic, and timeless feel, perfectly aligning with the 'João Rocha Drums' brand. It is designed to be highly recognizable and functional as a standalone icon.