What else? Strongly felt tonal key, which is called — I don't know if I mentioned this or not — the tonickey, the tonic pitch, the tonic pitch there, and this idea of the direction of the music.
The key would be proper timing: after tonic inhibition had initially protected as many brain cells as possible but before it begins interfering with the brain's recovery attempts.
问题的关键在于合适的时间：要在持续性抑制拯救了足够多得脑细胞之后，和它开始干涉脑恢复之前。
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The key of a piece of music is identified by the tonic.