Good news! Saying, "Play the song Caravan" worked exactly as you described. With that in mind, I do't know that there's a need to add the list functionality, although it might be nice for the sake of intuitiveness.
I encountered other challenges with House Band tonight. Here's what's going on:
1. I said, "Alexa, tell House Band to play the album High and Mighty." Alexa heard this correctly and listed the following albums and asked me which album to play:
-Gov't Mule, Mighty High
-Gov't Mule, High and Mighty
I changed my mind, and said, "Play Mighty High." Alexa heard, "Play Mighty Hi," and said, "Sorry, I couldn't find an item on the list matching Mighty Hi..."
Next I tried, "Alexa ask House Band for albums by Gov't Mule," Although I pronounced it "Government Mule. Predictably, House Band couldn't find anything. So I tried saying, "Alexa ask House Band for albums by Gov't Mule," but this time said "Gov't" just like it looks. House Band interpreted this correctly and returned the following albums and asked me what to play:
-Gov't Mule, Mighty Hight
-Gov't Mule, By A Thread
-Gov't Mule, Mo' voodoo
-Gov't, High & Mighty
Interestingly, when Alexa recited the names out loud, it pronounced "Gov't" as "government". At that point, I went back into the same loop as before.
2. I decided to move on to something less difficult - I thought. I said: "Alexa, tell House Band to play album Fast Paced World by the Duhks." Alexa heard: "Play album Fast Paced world by the Dukes." Understandably, House Band wasn't able to equate Duhks with Dukes. I'm not sure there's anything you can do about that.
3. Next I tried, "Play album Fast Paced World." Alexa heard this correctly, and House Band started playing the correct album. Unfortunately, the songs are out of order. There's a column called Sequence order. For some reason House Band is using this field, and not Track Number to select the order for the songs. I tried manually sorting by track rather than sequence, and restarting, but it still plays in sequence order. I suspect this might be user error. If anyone has configuration suggestions for me, I'd love to hear it.
I hope this doesn't sound like griping. I love House Band.
Edit: I should clarify, I don't have *any* playlists in Media Center. Boring as it sounds, I use it pretty much to play an album at a time, in order. I have no idea why Media Center automatically assigns a sequence number that doesn't match the track number.