Friday, May 15, 2026

Addition to the Pleiades K117 microphone single JFET preamplifier post

 (At your risk).


When connecting the Pleiades K117 to the Apple 3.5mm to USB C adaptor, headphones must be connected to the latter otherwise the mobile phone may not recognize it.




SM58 to mobile phone

(At your risk).


Please reduce volume before playing.




Signal path:


Outdoors at SNFCC park -

Shure SM58 at 24in, 45o above head towards nose of singer - 

German Transformer 500 Ohm to 50 KOhm, primary inductance 230mH -

Pleiades K117 JFET microphone preamplifier (schematic on a previous post) -

Apple 3.5mm to USB C adaptor (with Philips in ear headphones connected to)

Xiaomi Redmi Note 13 Pro + 5G


Notes:

To my mind when I listen to it with the Sennheiser HD-580 headphones, it sounds bass or mid bass heavy. The Shure Unidyne B may do the trick as in my experience it can sound with flat frequency response from my mind as producer to my mind as listener without the need to add a frequency response EQ or filter after the microphone.

We need to use a much quieter outdoors place.









Dimitra Galani, music by Giorgos Hatzinasios

 




The Principle of Least Change in Music

(At your risk).


Least change has great impact on mind perception.


For example:


You Do Something to Me - Paul Weller




The song is written in E minor.


So the first bass is E.


Paul sings E #F G B while bass is E.


Then repeats B while bass goes down to D creating an interval of major 6th.


Then bass goes down to A but as there is nothing at that moment sung the mind of the listener has the perception of prepared major 9th since the distance between bass A and melody B is 9 steps of the scale.


For more please read the book: "A Letter to Clive Davis" - euroelectron


Further reading:


The Bach Manual for his students in composition which can be found at the appendix of Bach's biography by Spitta. I do not know if it is included in newer editions, please check.





The major 3rd major 7th Chord

 

For example.


Bass C (Do) and a higher part playing B (Si).


Accord to the Bach-Niedt manual we also add the 3rd with respect to bass, that is E (Mi).


The beauty can be heard whenever the singer sings "I can't" in every chorus of the song We Are the People - Empire of the Sun.




For more please read the book under construction: "A Letter to Clive Davis" on euroelectron.



 

Doris Day

 



I heard this yesterday form Kosmos FM radio of Hellenic Radio in the Adam's broadcast show.




Το Παιδί κσι το Ψάρι

(Με δική σας ευθύνη).


Ιδέα παραμυθιού στο προηγούμενο post.