Rhodes Chroma Polaris

> ...  I don't have a cassette player or the cable for interfacing
>  the Chroma to a Cassette player... I believe that I need to load
> the sound data onto a sequencer and load the data into the Chroma
> via MIDI.

To summarize - you would really have two main options.

The first is to still use the 'cassette' method.  To do so, you don't 
actually need the original cassette cable, nor do you actually have to 
use the 'cassette'.

For the connection, you can use the 1/4" 'sync' jacks on the Polaris. 
For the source, you can use a .wav file (or similar) played back to the 
Polaris.

The use of the 'SYNC' jacks for cassette operations is discussed in the 
Polaris user's manual - xref page 64 of:

http://www.rhodeschroma.com/content/polaris/ownersmanual.pdf

The .wav files for the factory sets/sequences are available on-line 
here:

http://www.rhodeschroma.com/?id=polarispatches

The second option is to use MIDI sysex to load the patches.  The sysex 
version of the patches are also available here:

http://www.rhodeschroma.com/?id=polarispatches

David Clarke