Scilla

As is often the case a blip from Kanyl's garden.  This I think is a Scilla, but I didn't press Kanyl for a definitive answer (always assuming he could remember from however long ago he planted them).

If I was really pushed for an identification I would suggest S forbesii, which is a native of Turkey.  Scilla was formerly classed as Chionodoxa.  Other varieties can be white and pink.