Change history of «midified arpeggiator/auto-accompaniment using patterns»

α	β	date	comment
		03 Jan'20 01:19
		03 Jan'20 01:19
		03 Jan'20 01:35	remove some code duplication
		03 Jan'20 01:38	bug fix
		03 Jan'20 01:40	better title and additional tag
		03 Jan'20 09:29	add tag
		05 Jan'20 00:26	fix wrong usage of Pseq repeat argument
		11 Jan'20 13:46	small code simplification