Midi Implementation Notation, Hexadecimal Notation

Part IX

MIDI Implementation Notation

42.19Hexadecimal Notation

MIDI implementation sometimes requires that data be expressed in hexadecimal format. Hexadecimal values are indicated by the letter "H" after the value. The hexadecimal equivalents of decimal values 10 through 15 are expressed as the letters A through F. The following table shows the hexadecimal equivalents for the most commonly used values (0 to 127).

Decimal	Hexadecimal	Decimal	Hexadecimal	Decimal	Hexadecimal	Decimal	Hexadecimal

0	00H	32	20H	64	40H	96	60H

1	01H	33	21H	65	41H	97	61H

2	02H	34	22H	66	42H	98	62H

3	03H	35	23H	67	43H	99	63H

4	04H	36	24H	68	44H	100	64H

5	05H	37	25H	69	45H	101	65H
6	06H	38	26H	70	46H	102	66H

7	07H	39	27H	71	47H	103	67H

8	08H	40	28H	72	48H	104	68H

9	09H	41	29H	73	49H	105	69H

10	0AH	42	2AH	74	4AH	106	6AH

11	0BH	43	2BH	75	4BH	107	6BH

12	0CH	44	2CH	76	4CH	108	6CH
13	0DH	45	2DH	77	4DH	109	6DH

14	0EH	46	2EH	78	4EH	110	6EH

15	0FH	47	2FH	79	4FH	111	6FH

16	10H	48	30H	80	50H	112	70H

17	11H	49	31H	81	51H	113	71H

18	12H	50	32H	82	52H	114	72H

19	13H	51	33H	83	53H	115	73H

20	14H	52	34H	84	54H	116	74H

21	15H	53	35H	85	55H	117	75H

22	16H	54	36H	86	56H	118	76H

23	17H	55	37H	87	57H	119	77H

24	18H	56	38H	88	58H	120	78H

25	19H	57	39H	89	59H	121	79H

26	1AH	58	3AH	90	5AH	122	7AH

27	1BH	59	3BH	91	5BH	123	7BH
28	1CH	60	3CH	92	5CH	124	7CH

29	1DH	61	3DH	93	5DH	125	7DH

30	1EH	62	3EH	94	5EH	126	7EH

31	1FH	63	3FH	95	5FH	127	7FH

42.20Binary Notation

When a MIDI implementation data value is expressed in binary, the letter "B" (for "binary") is affixed at the end of the value.The following table shows the binary equivalents for some of the values in the most commonly used range (0 to 127).

Decimal	Hexadecimal	Binary

0	00H	00000000B

1	01H	00000001B

2	02H	00000010B

3	03H	00000011B

4	04H	00000100B

5	05H	00000101B

6	06H	00000110B

7	07H	00000111B

8	08H	00001000B

9	09H	00001001B

10	0AH	00001010B

11	0BH	00001011B

12	0CH	00001100B

13	0DH	00001101B

14	0EH	00001110B

15	0FH	00001111B

16	10H	00010000B

:	:

125	7DH	01111101B

126	7EH	01111110B

127	7FH	01111111B

WK-3700, WK-3200, CTK-900 specifications

The Casio CTK-900, WK-3200, and WK-3700 are a trio of notable keyboards that cater to both beginner and intermediate musicians. Each model features a range of impressive specifications and functionalities designed to enhance the musical experience while allowing for creativity and exploration in sound.

The Casio CTK-900 is a compact 61-key keyboard that includes 600 tones and 180 rhythms, offering a diverse palette for anyone looking to explore different music styles. One of its key features is the Dance Music Mode, which simplifies the process of creating electronic music tracks through a user-friendly interface. The CTK-900 also includes a High-Quality module and a built-in lesson function that guides users through playing. With a lightweight design, it is highly portable and perfect for musicians on the go. Its MIDI connectivity allows for easy integration with computer software for recording and music production.

Moving on to the WK-3200, this model features a 76-key touch response keyboard, which provides a more extensive range for playing. It includes 670 tones and 200 rhythms, giving users even more options for musical expression. The WK-3200 also offers a larger LCD display for easier navigation through settings, and it features a Music Tutor function that helps users improve their skills. With layered and split keyboard capabilities, the WK-3200 is ideal for those looking to perform as a solo artist or in a band setting. Its built-in speaker system delivers clear sound output, enhancing the overall playing experience.

The WK-3700 takes many of the positives from the WK-3200 and elevates them further. With the same 76-key layout, it provides expressive playing capabilities while incorporating over 700 tones and 200 rhythms. This model also allows users to record their performances in real time using a built-in 6-track sequencer, making it easier for musicians to arrange and edit their own compositions. Additionally, the WK-3700 includes advanced features like the ambiance and reverb effects, providing an enhanced sound quality. The incorporation of features such as a song bank with over 100 pre-recorded songs ensures that users can learn and play along with ease.

Overall, the Casio CTK-900, WK-3200, and WK-3700 are excellent choices for musicians seeking versatile and user-friendly keyboards. Each model brings unique features and technologies that support musical innovation while catering to a wide range of skill levels. Whether you are a budding artist or a seasoned performer, these keyboards provide an effective blend of utility, quality, and fun.