Isaiah 5

It took me almost 10 minutes to read this chapter. God put a song in the prophet's mind. I picture it as one of those tunes that keep playing over and over in out mind. So he put pen to parchment and wrote it down.  There must have been a tune to accompany it, maybe it was a familar grape harvest song. I wouldn't be surprised if God gave Isaiah this song around Yom Kippur. To sing along with the harvesters. But the words Isaiah sang may have matched the harvest that the vinyards produced; 5 gallons for a 10 acre field. There could be no celebration in that. How could this "fool-hardy" prophet be singing songs about an abundant harvest when there wasn't such a crop?
At least that's how I imagine Isaiah presenting this message of rebuke to the Kingdom of Judah.
Stuart