An electronics engineer needs help from piano experts

[moonnightingale]

Hi i am electronics enginner and now a days i am making piano tones in Matlab Software
I have made tones according to key number and duration of keys and music plays for 40 seconds. Now the last portion of book question says.

A chord can be synthesized by adding the tone vectors for each note in the chord. As this
is vector addition, the vectors must be the same size. Likewise, if your song has more
than one melody line, you can produce separate vectors for each melody (treble and bass)
and then combine them into one song by adding the vectors.

Can anybody explain me this para. What is Chord in Piano

[nystul]

A chord is a group of notes that are played at the same time to create harmony.  The method described is apparently for making multiple notes sound at the same time.

[moonnightingale]

Ok thanks
and what he mean by trebble and base. u can assume my code is having key numbers and durations

keys= 56 56 0 56 0 52 56 0 59 0 0 47 0 0 ......................
duration=t t t t t t t t t t 2*t t t 2*t   ............... where t =0.17

How can i make chord

if i play key no 56,52 and 56 at the same time, will it be a chord.
Is there any procedure to make chord or i can press any 3 to 4 keys to make chord

What is treeble and bass

Is there any key sequence that if i have made song , then i can get key sequence of bass and treeble

[moonnightingale]

what i have understood uptill now is that if my

alto keys=      [23 56 76]
treble keys  = [54 32 34]
bass keys    = [12 23 34]

And if i add 23+54+12 or press these keys simultaneously, i will make one chord

similarly if all second keys are added it will make chord


Is this approach correct???

[bleicher]

I think you'll be best off either getting a beginner music theory book or finding a musician to show you the basics of chords at the piano. It's going to be too easy to create misunderstandings when asking questions on a forum.