V-Accordion r

MIDI implementation

9. MIDI implementation

1. Received data

■Channel Voice Messages

● Note off

Status

2nd byte

3rd byte

8nH

kkH

vvH

n = MIDI channel number:

0H~FH (Ch.1~16)

kk = note number:

 

00H~7FH (0~127)

vv = note off velocity:

00H~7FH (0~127)

● Note on

 

 

Status

2nd byte

3rd byte

9nH

kkH

vvH

n = MIDI channel number:

0H~FH (Ch.1~16)

kk = note number:

 

00H~7FH (0~127)

vv = note on velocity:

01H~7FH (1~127)

●Control Change

•The value specified by a Control Change message is not reset by a Program Change, etc.

❍Bank Select (Controller number 0, 32)

Status

2nd byte

3rd byte

BnH

00H

mmH

BnH

20H

llH

n = MIDI channel number:

0H~FH (Ch.1~16)

mm = Bank number MSB:

00H~7FH

ll = Bank number LSB:

00H~7FH

•Only for Free Bass.

❍Expression (Controller number 11)

Status

2nd byte

3rd byte

BnH

0BH

vvH

n = MIDI channel number:

0H~FH (Ch.1~16)

vv = Expression:

 

00H~7FH (0~127)

•This adjusts the volume of a Part. It can be used independently from Volume (CC07) messages. Expression messages are used for musical expression within a performance, e.g., expression pedal movements, crescendo and decrescendo.

■System Exclusive Messages

Status

Data byte

Status

F0H

iiH, ddH, ......,eeH

F7H

F0H:

System Exclusive Message status

ii = ID number:

An ID number (manufacturer ID) to indicate the manufacturer

 

whose Exclusive message this is. Roland’s manufacturer ID is

 

41H.

 

dd,...,ee = data:

00H~7FH (0~127)

 

F7H:

EOX (End Of Exclusive)

The System Exclusive Messages received by the FR-7/FR-5 are messages related to Data Set (DT).

●Data Set 1 DT1 (12H)

Status

Data byte

Status

F0H

41H, dev, 42H, 12H, aaH, bbH, ccH, ddH, … eeH,

F7H

 

ffH, sum

 

Byte

Explanation

 

F0H

Exclusive status

 

41H

ID number (Roland)

 

10H

Device ID

 

00H

Model ID #1 (FR-7/FR-5 V-Accordion)

 

7CH

Model ID #2 (FR-7/FR-5 V-Accordion)

 

12H

Command ID (DT1)

 

aaH

Address MSB: upper byte of the starting address of

 

 

the data to be sent

 

bbH

Address: upper middle byte of the starting address of

 

 

the data to be sent

 

ccH

Address: lower middle byte of the starting address of

 

 

the data to be sent

 

ddH

Address LSB: lower byte of the starting address of

 

 

the data to be sent

 

eeH

Data: the actual data to be sent. Multiple bytes of data

 

 

are transmitted in order starting from the address.

 

::

::

 

ffH

Data

 

sum

Checksum

 

F7H

EOX (End of Exclusive)

 

•

The amount of data that can be received at one time depends on the type of data,

 

and data will be transmitted from the specified starting address and size.

•

Data larger than 256 bytes must be divided into packets of 256 bytes or less, and

❍Hold 1 (Controller number 64)

Status

2nd byte

BnH

40H

n = MIDI channel number:

vv= Control value:

❍Program Change

Status

2nd byte

CnH

ppH

n = MIDI channel number:

pp= Program number:

❍Channel Pressure

Status

2nd byte

DnH

vvH

n = MIDI channel number: vv = Channel Pressure:

3rd byte

vvH

0H~FH (Ch.1~16) 00H~7FH (0~127) 00H~63H= Off/64H~7FH= On

0H~FH (Ch.1~16)

00H~0DH: Treble Register 1~14

00H~15H: Orchestra Register 1~22

00H~06H: Bass/FreeBass/Orch.Bass/Orch Chord, Orch Free Bass Register 1~7 00H~27H: Set 1~40

0H~FH (Ch.1~16) 00H~7FH (0~127)

each packet must be sent at an interval of about 20ms.

2. Transmitted data

■Channel Voice Messages

● Note off

Status

2nd byte

3rd byte

8nH

kkH

vvH

n = MIDI channel number:

0H~FH (Ch.1~16)

kk = note number:

 

00H~7FH (0~127)

vv = note off velocity:

00H~7FH (0~127)

● Note on

 

 

Status

2nd byte

3rd byte

9nH

kkH

vvH

n = MIDI channel number:

0H~FH (Ch.1~16)

kk = note number:

 

00H~7FH (0~127)

vv = note on velocity:

01H~7FH (1~127)

●Control Change

❍Bank Select (Controller number 0, 32)

■System Realtime Messages

❍Active Sensing Status

FEH

•When Active Sensing is received, the FR-7/FR-5 starts monitoring the intervals of all further messages. While monitoring, if the interval between messages exceeds 420 ms, the same processing will be carried out as when All Sounds Off, All Notes Off and Reset All Controllers are received, and message interval monitoring will be halted.

❍Start Status

FAH

•When an FA message is received from an external MIDI device such as sequenc- er, the FR-7/FR-5 sends all necessary MIDI information for a song header setup: Treble, Orchestra, Bass/Free, Orchestra Bass, sound setup.

Status

2nd byte

3rd byte

BnH

00H

mmH

BnH

20H

llH

n = MIDI channel number:

0H~FH (Ch.1~16)

mm = Bank number MSB:

00H~7FH

ll = Bank number LSB:

00H~7FH

❍Volume (Controller number 7)

Status

2nd byte

3rd byte

BnH

07H

vvH

n = MIDI channel number:

0H~FH (Ch.1~16)

vv = Volume:

 

00H~7FH (0~127), Initial value = 64H (100)

•Volume messages are used to adjust the volume balance of each Part.

105

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Roland FR-5, FR-7 owner manual Midi implementation, 105
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FR-7, FR-5 specifications

The Roland FR-5 and FR-7 are part of Roland's acclaimed line of digital accordions, known for their innovative technologies and exceptional sound quality. These instruments have been designed to provide musicians with a versatile and rich playing experience, fusing traditional accordion elements with modern digital functionality.

One of the most significant features of both the FR-5 and FR-7 is their advanced digital sound engine. This technology offers a wide array of sounds, including a variety of accordion types, reeds, and orchestral instruments. The sound quality is remarkable, with a high level of fidelity that captures the essence of authentic acoustic instruments. Musicians can easily switch between different instrument sounds, making these accordions perfect for various musical styles and genres.

Both models feature a lightweight and ergonomic design, making them comfortable to play for extended periods. The FR-5 and FR-7 have built-in speakers that provide excellent sound projection, allowing performers to play without the need for external amplification. Furthermore, the onboard effects, such as reverb and chorus, enhance the musical experience, enabling players to add depth and character to their performances.

The user interface on both models is intuitive, with easily accessible controls that allow for quick adjustments while performing. The FR-7 takes it a notch higher with its extensive customizable settings and user memory options, which can store a variety of configurations and preferences for different playing situations.

A standout feature of the FR-7 is its capability for MIDI connectivity, enabling musicians to connect to computers and other digital devices. This opens up a world of possibilities for recording and live performance setups, allowing users to integrate their accordion with software instruments and digital audio workstations.

In terms of playability, the FR-5 and FR-7 offer responsive keyboard action and a range of registers that mimic the sound of traditional accordions. The bellows response is finely tuned, ensuring that players can achieve dynamic expression through their playing style.

Overall, the Roland FR-5 and FR-7 digital accordions represent a perfect blend of traditional craftsmanship and modern technology, catering to both hobbyists and professional musicians. With their exceptional sound, lightweight design, and cutting-edge features, these instruments are redefining the possibilities of accordion music in contemporary settings. Whether one is performing on stage or practicing at home, the FR-5 and FR-7 deliver an unparalleled playing experience that inspires creativity and passion for music.
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