Anyway, this is only a joke as I hope you understand. But still, I've been playin' bass for two years - and I'd be grateful for any feedback on even my slapping.
You got the technique down, but IMO it needs less notes. It sounds too saturated. Some more defined ghost notes would work nice there. Still, that recording was tastefully done . Nice job.
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"We play basses with more than four strings to make you ask stupid questions. Other than that they're completely useless."- Benjamin Strange