A Message From Mega Noise

A Musical Encryption

I might base too much here on musical knowledge, like knowing that the BPM is ♩ = 120.

2MB

4773a4e5-32ca-4779-b3d3-f54629045bf3.mp3

The audio file supplied by Mega Noise contains 83 notes that vary by tone and length. Given the hint that ♩ = 120, it is determined that there are 5 note lengths of sixteenth, eight, quarter, half and whole note. Using an 88 piano key notation, the 83 notes are classified below.

Note	Key	Length
1	57	Half
2	52	Quarter
3	42	Whole
4	48	Sixteenth
5	52	Quarter
6	51	Half
7	36	Quarter
8	51	Sixteenth
9	46	Whole
10	37	Sixteenth
11	53	Half
12	44	Quarter
13	53	Eighth
14	52	Half
15	51	Whole
16	55	Quarter
17	31	Half
18	49	Whole
19	45	Quarter
20	28	Sixteenth
21	57	Whole
22	59	Eighth
23	31	Whole
24	40	Half
25	46	Sixteenth
26	53	Whole
27	59	Quarter
28	37	Whole
29	38	Sixteenth
30	40	Whole
31	56	Whole
32	54	Half
33	58	Eighth
34	41	Half
35	40	Quarter
36	37	Quarter
37	45	Whole
38	50	Sixteenth
39	47	Quarter
40	29	Quarter
41	30	Whole
42	56	Half
43	43	Quarter
44	56	Sixteenth
45	52	Whole
46	61	Whole
47	34	Sixteenth
48	39	Sixteenth
49	44	Whole
50	54	Sixteenth
51	52	Sixteenth
52	60	Eighth
53	34	Quarter
54	32	Quarter
55	35	Whole
56	36	Sixteenth
57	38	Whole
58	58	Whole
59	57	Eighth
60	34	Half
61	63	Quarter
62	54	Sixteenth
63	38	Quarter
64	29	Eighth
65	41	Sixteenth
66	46	Half
67	61	Quarter
68	47	Whole
69	45	Sixteenth
70	29	Half
71	50	Half
72	53	Quarter
73	60	Whole
74	33	Eighth
75	28	Quarter
76	32	Sixteenth
77	61	Half
78	63	Sixteenth
79	50	Whole
80	58	Sixteenth
81	62	Eighth
82	33	Whole
83	29	Whole

Each note represents a binary bit in a 5 bit binary sequence for each tone which resolves to a value from 1-26 when converted to ASCII and a final message.

Tone	16th	8th	Q	H	W	5-bit	Dec	a1z26
28	1	0	1	0	0	10100	20	T
29	0	1	1	1	1	01111	15	O
30	0	0	0	0	1	00001	1	A
31	0	0	0	1	1	00011	3	C
32	1	0	1	0	0	10100	16	T
33	0	1	0	0	1	01001	9	I
34	1	0	1	1	0	10110	22	V
35	0	0	0	0	1	00001	1	A
36	1	0	1	0	0	10100	20	T
37	1	0	1	0	1	10101	5	E
38	1	0	1	0	1	10101	21	U
39	1	0	0	0	0	10000	16	P
40	0	0	1	1	1	00111	7	G
41	1	0	0	1	0	10010	2	R
42	0	0	0	0	1	00001	1	A
43	0	0	1	0	0	00100	4	D
44	0	0	1	0	1	00101	5	E
45	1	0	1	0	1	10101	21	U
46	1	0	0	1	1	10011	19	S
47	0	0	1	0	1	00101	5	E
48	1	0	0	0	0	10000	16	P
49	0	0	0	0	1	00001	1	A
50	1	0	0	1	1	10011	19	S
51	1	0	0	1	1	10011	19	S
52	1	0	1	1	1	10111	23	W
53	0	1	1	1	1	01111	15	O
54	1	0	0	1	0	10010	18	R
55	0	0	1	0	0	00100	4	D
56	1	0	0	1	1	10011	19	S
57	0	1	0	1	1	01011	11	K
58	1	1	0	0	1	11001	25	Y
59	0	1	1	0	0	01100	12	L
60	0	1	0	0	1	01001	9	I
61	0	0	1	1	1	00111	7	G
62	0	1	0	0	0	01000	8	H
63	1	0	1	0	0	10100	20	T

The final message reads

TO ACTIVATE UPGRADE USE PASSWORD SKYLIGHT

Entering the password unlocked the computer and provided access to Encrypted Location Data