Isokratis PA is the definition of digital Isokratis for Byzantine Music. It features 12 keys, which can be programmed according to the 72ET scales of Committee 1881 (12-10-8 etc.), Chrysanthos (12-9-9 etc.), Didymos (12-11-7 etc.) and European (12-12-6 etc.). For more information on the scales please see our articles in Psaltiki.gr [http://psaltiki.gr/papers]. Isokratis also features pitch shift in 2 72ET-cents steps from -36 to 36, and pressed key frequency display. The fade-in/fade-out of the sound while pressing/releasing the buttons can be also programmed for a fast and smooth sound response. There is also volume control, and no stop button as pressing again the pressed button, stops smoothly the sound. The isokratis can be used to keep the isokratima (ison, ίσον) for home or school practice by the student, teacher and chanter of the Psaltiki Art (Byzantine Music).

 

 

 

 

(before you start the process, please read out the full process first, and then proceed)

 

Open the app Isokratis PA (Release 3.4) in your device

Connect your device through the USB post with your PC.

- Open Windows Explorer, and go to the folder: : My Computer\Android Device\Isokratis PA

Load the following mp3 sound files in the aforementioned folder (*) - you can also load only the first, or only the second, etc. sound set, or all together (**):

g3_ison1.mp3

a3_ison1.mp3

b3_ison1.mp3

c4_ison1.mp3

d4_ison1.mp3

e4_ison1.mp3

f4_ison1.mp3

g4_ison1.mp3

a4_ison1.mp3

g3_ison2.mp3

a3_ison2.mp3

b3_ison2.mp3

c4_ison2.mp3

d4_ison2.mp3

e4_ison2.mp3

f4_ison2.mp3

g4_ison2.mp3

a4_ison2.mp3

....

 

....

 

....

g3_ison6.mp3

a3_ison6.mp3

b3_ison6.mp3

c4_ison6.mp3

d4_ison6.mp3

e4_ison6.mp3

f4_ison6.mp3

g4_ison6.mp3

a4_ison6.mp3

 

These files are for the 6 Ison sound sets, for example see the paragraph below (**), and they contain the tones di, ke, zo, ... Di, Ke (all diatonic according to the Committee 1881 scale: 12-10-8-12-12-10-8), while Ke is at (not necessarily) 200Hz.

To set the frequency of Ke for the correct display of the tones' frequencies, and to name e.g. Ison set#2 (Ison2), create a file named a4_freq_ison2.txt, save it in UTF-8 encoding, and in its content put e.g.

Διαβάστε περισσότερα: How to Load your own Ison files to Isokratis PA!

 

[current release 1.0.0]

 

Isokratis PA is the definition of digital Isokratis for Byzantine Music. It features 12 keys, which can be programmed according to various scales. Isokratis also features coarse and fine pitch tuners allowing for pitch shift in steps of 0.1, 0.5, 1.0, 2.0, 6.0 72ET-cent steps from -36 to 36, and pressed key frequency display. The fade-in/fade-out of the sound can be also programmed for a fast and smooth sound response. Isokratis Deck is an additional feature allowing the use of Isokratis on top of other apps such as a PDF Reader.

The isokratis can be used to keep the isokratima (ison, ίσον) for home or school practice by the student, teacher and chanter of the Psaltiki Art (Byzantine Music).

* For best sound experience, please connect your phone/tablet to your home theater or good computer speakers that can handle well low frequencies (bass). 

 

Feature List:

1. 12 Keys/Tones for Ison

2. Byzantine Music scales selection: 72ET (Committee 1881, Chrysanthos, Didymos, European)

3. Isokratis Deck (Iso Deck) in Portrait or Landscape: Isokratis on top of other apps

4. Coarse Pitch Shift in 6 or 2 or 1 72ET-cent steps from -36 up to 36.

5. Fine Pitch Shift in 0.1, 0.5 or 1 72ET-cent steps.

6. Pitch Shift in Real Time (while key pressed) or on the next Key Press / Pitch Shift Reset Button

7. Real Fade In/Out engine, that allow for different duration options, for best sound change

8. Fast and/or Smooth sound response on buttons

9. Virtual LCD showing press key frequency

10. Volume Control

11. Reset/Save Settings capabilities

12. Portrait or Landscape operation

13. Second Sound Package for devices having low performance on the Sound Engine

14. We don't require submission of any of your phone IDs (app is activated with your purchase)

15. We don't put restrictions in the number of devices to install Isokratis

 

We recommend Android 4.4.4 and quad-core devices. Please check the List with Devices where Isokratis is shown to work well (and those devices having problems). If your device doesn't work well, please select from the Settings, Sound Package #2. If you are still facing problems please contact us!

(!) Devices that work well with Isokratis (as well devices shown problems)

* If you like our app, please give us a positive rating to support our development efforts. If you face any problems, please don't hesitate to email us.

* Isokratis PA is copyright protected. You can't reverse engineer it, nor violate our copyrights. Isokratis PA is sold exclusively by the Google Play Store. Please inform us if you find our app elsewhere. Thank you for supporting our development efforts.

** Android 5.0, 5.1 Issues (2 devices known so far):
- Only one issue has been observed so far with Motorola Nexus 6 using Android 5.0/5.1: Audible "clicks" have been observed between button changes when using devices' own speakers. If external speakers are connected, no problem has been observed. We hope the issue will be resolved in some future firmware update.
- OnePlus One using Blisspop (custom Android 5.0.2) works fine without any issues.

 

 

 

Some app screenshots: 

 

  

 

Below you may see a demo video of old Release 0.9