an Entity references as follows:
Cakewalk was a sequencer first developed by Twelve Tone Systems, Inc. (the company later known as Cakewalk, Inc.). Originally for DOS, starting with version Cakewalk 1.0 in 1987, and, beginning in 1991, for Windows 3.0. Cakewalk, until version 4.0 required an MPU-401 MIDI interface card operating in intelligent mode, while 4.0 and later versions relied on the dumb UART mode only. Cakewalk was delivered in two versions, Cakewalk Pro and Cakewalk Express.