Amazon Musicで、音楽やポッドキャストを無料でストリーミング再生しよう。 お支払い登録不要。無料で聴く 1![](https://m.media-amazon.com/images/G/01/digital/music/player/web/EQ_accent.gif)
Concentration Deepens with Natural Echoes
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Birds and Creek Clear the Mind
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Nature’s Focus Through Sound and Silence
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Calm Currents Lead to Deep Focus
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Mindfulness in Each Chirp and Ripple
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Attention Anchored by Water’s Melody
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Productivity Flows Like a Gentle Stream
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Study Companion in Birds and Brooks
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Nature’s Whisper Sharpens Thoughts
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Clarity in the Murmur of Streams
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