What's my pattern?

1,2,3,6,4,5,12,10,8,7,...

(not a #LullabySequence, or at least I haven't done the maths to make it easy to chant without stopping to think yet)

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A slightly more complicated #LullabySequence:

2,3,4,2,5,6,4,2,7,8,6,4,2,9,6,4,2,…

What's my pattern?