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I forgot to mention 'Band-in-a-Box' and 'Power Tracks' by PG Music - - - http://www.pgmusic.com/

P.S. - the ECS A900 is a Cyrix based 'desknote' that has a similar SiS chipset, but is only $620 - $630 USD.
The A929 has the AMD Athlon based SiS chipset.
I used an ECS A900 some months ago and was impressed with it. For the bucks (money), it had all the bang - 10 GBHD, 4 USB, Audio, SPDIF, LAN, Modem, DVD/CD, 2nd Video out, and even S-Video! I wouldn't be surprised to see folks using it for Karaoke lyric output. It doesn't have a FDD, but if your Arranger Keyboard DID, maybe you can make a happy hybrid.