So I've been researching neuroscience and music lately and happened across a supplement that is a cholinergic precursor called alpha-GPC. Choline being a primary neurotransmitter that provides structural integrity for the brain and signaling roles for synaptic transmission. Took a few and had at least a 10% increase in accuracy when playing guitar and retaining memory was boosted too. I was able to pick up on learning parts to songs from bands i like a lot faster. Anyone try this at all? (<---ergo, weird question) if any of you do, let me know how it went for you. Thanks!