Song snapshot

[bukru]

As mentioned here : #854

Not agree with the implementation but the concept sound really nice :

• The sound is good and on a sweet point
• I do something to make the snapshot
• Now i can play with every thing and comeback to the previous sweet state in live

That sound reeeeealy great, maybe there is already a tricks to do this ?

[bukru]

one year later i confirm that would be an amazing feature ^^