AMENDED AND RESTATED JOINT FILING AGREEMENT Dated as of December 13, 2006
Exhibit A
AMENDED AND RESTATED JOINT FILING AGREEMENT
Dated as of December 13, 2006
In accordance with Rules 13d-1(k) and 13d-2(a) promulgated under the Securities Exchange Act
of 1934, as amended, each of the undersigned hereby agrees to the joint filing on behalf of each of
the undersigned of an amendment to the Schedule 13D filed with the Securities and Exchange
Commission on March 6, 2006 (including any and all amendments thereto) with respect to the shares
of common stock, par value $0.01 per share, of MakeMusic, Inc., a Minnesota corporation, and that
this Amended and Restated Joint Filing Agreement may be included as an Exhibit to such joint
filing.
Each of the undersigned agrees that each party hereto is responsible for the timely filing of
such Schedule 13D/A (including any and all amendments thereto) and for the completeness and
accuracy of the information concerning such party contained therein, provided that no party is
responsible for the completeness and accuracy of the information concerning any other party, unless
such party actually knows that such information is incorrect. Each party will indemnify the other
parties for any incompleteness or inaccuracy in such information concerning the indemnifying party.
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IN WITNESS WHEREOF, the undersigned hereby execute this Amended and Restated Joint Filing
Agreement as of the date first written above.
| LAUNCHEQUITY PARTNERS I, L.P. | ||||||||
| By: Broadway Advisors, LLC | ||||||||
| Its: General Partner | ||||||||
| By: | /s/ Xxxxxxx X. Xxxx | |||||||
| Name: Xxxxxxx X. Xxxx | ||||||||
| Its: Manager | ||||||||
| LEAP HOLDINGS, L.P. | ||||||||
| By: Broadway Advisors, LLC | ||||||||
| Its: General Partner | ||||||||
| By: | /s/ Xxxxxxx X. Xxxx | |||||||
| Name: Xxxxxxx X. Xxxx | ||||||||
| Its: Manager | ||||||||
| LAUNCHEQUITY ACQUISITION PARTNERS, LLC - EDUCATION PARTNERS |
||||||||
| By: Broadway Advisors, LLC | ||||||||
| Its: Manager | ||||||||
| By: | /s/ Xxxxxxx X. Xxxx | |||||||
| Name: Xxxxxxx X. Xxxx | ||||||||
| Its: Manager | ||||||||
| LAUNCHEQUITY ACQUISITION PARTNERS, LLC - EDUCATION PARTNERS I |
||||||||
| By: Broadway Advisors, LLC | ||||||||
| Its: Manager | ||||||||
| By: | /s/ Xxxxxxx X. Xxxx | |||||||
| Name: Xxxxxxx X. Xxxx | ||||||||
| Its: Manager | ||||||||
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| BROADWAY ADVISORS, LLC |
||||
| By: | /s/ Xxxxxxx X. Xxxx | |||
| Name: | Xxxxxxx X. Xxxx | |||
| Its: Manager | ||||
| /s/ Xxxxxxx X. Xxxx | ||||
| XXXXXXX X. XXXX | ||||
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