Mozart Sonata in C Major, K545

Mozart's Sonata in C, K545 performed by my Apple //c

Category:

Music

Tags:

• Apple
• Computer
• Mozart
• K545
• Music
• Recital

[gansan00]

Considering the Apple II had a single memory location to poke to make the speaker emit a tiny "click," does anyone know how exactly they multiplexed two voices in this program? I know this program did it, as did EA's Music Construction Set. However, I don't remember any games ever achieving this during gameplay. There was also another demo program that multiplexed voices in a time-multiplexed way, where the speaker was alternating between the two about 20 times per second (maple leaf rag).

[krb3141]

@gansan00 when you click the speaker, it sends the cone out. but if you poke the address again to make the cone come back, if you do it fast enough you kinda get the cone to hang out in the middle (in between states). If you modulate the time in between pokes you cause the cone's movement to achieve audio frequencies. The most popular game I remember that used it was Castle Wolfenstein. The guards would yell at you "Halt! Comenzie! Aus Pass!" Pretty wicked for the time.

[krb3141]

The arch. of the PC was set by IBM, not MS. It's cool to hate Gates, but nothing here or in the sound of the original PC has any bearing on that.

The PC architects drove the PC speaker from a timer chip which actually gave them more power. Woz drove the cone speaker from a bit memory-mapped to the Apple address space. You peek or poke one location.

Instead of trying to kick MS over this we should be marveling at the genius it took to create such sound from such a primitive system.

[Lachlant1984]

I found this video months ago, and while watching it I realized something. No IBM PC could do this back in 1984, because Bill Gates is a dickhead, people say how cleaver he is because he's autistic, I say the reason why Microsoft suck and why they're so behind is because Bill Gates is an autistic cunt. I'd much rather use one of these machines for day to day tasks than use a PC with Windows Vista.

[krb3141]

Easy boy.

a) the IBM PC actually had a timer chip to drive the speaker, so you could make the computer beep and stuff and actually do other stuff, even though you couldn't do cool fake analog audio like you could do on the Apple.

b) That had nothing to do with MS or Gates. That was 100% IBM Boca Raton.

[HarvardHeinous]

This used to impress us! We used to stare at it in awe. HA!!!

[krb3141]

It used to impress us...and it still impresses me, knowing now that speaker works, and knowing that they did this in the eawrly 1980s!

[ccarrazana]

OMG !!! I traveled to the past Thanks so much...

[LordAmherst]

Loooooool

[mashersmasher]

@krb3141 and since apple used DOS and even has "microsoft (c) 77 to 84" silk screaned onto the motherboard right below the rom on the apple IIc you can actually kind of THANK bill for this one :P

[Squid3660]

I hadn't heard this live in about 20 years! Although, every note has been stuck in my head since the late 1980's. I finally broke down and spent the past week researching what the music is. I mean, I did every possible search. After tracking down that it is a sonata, I went through every possible composer... Bach, Beethoven, Haydn, and finally found sonata 15 by Mozart. Then I cross referenced "Mozart Sonata Apple II" and found your video. I never EVER thought I would hear this ever again! 

[zebruh]

Oh my gosh this brings back memories.

I had a ][e

[isthisnickvalid]

@Lachlant1984 haha you hater

[ThatVoiceAgain]

@Lachlant1984 LMAO LMAO LMAO

[gremlingrem]

J'adore, que de souvenirs sur cet ordinateur qui fut mon premier apple. Merci