Hello,
I would like to make a very simple circuit. I have a small speaker and
I'd like to learn how to make the simplest circuit to output sound at a
specific frequency and a specific volume through the speaker.

I don't want to use integrated circuit chips, I want to build it from
the basic components: capacitors, inductors, transistors, resistors,
diodes, etc. and that's about it.

I'm wondering if you guys can first tell me whether what I'm planning
to learn are right to complete my project, and then, point me out to
resources to learn about that?

I think I would have to learn how to:
1) Make a circuit with a current oscillating at a specific frequency
(which could be done with capacitors/inductors/resistors, as far as I
know.)
2) Amplify the current in order to generate audible sound in the
speaker
3) Combine the speaker with the circuit and still be able to calculate
the oscillation frequency

Is my assumption that a simple oscillating circuit going through a
speaker in serie is enough to generate a sound? i.e. a circuit
oscillating at 440hz connected to a speaker will output what
corresponds to a middle C in music.

I have some experience doing electronics, but mostly digital and am a
beginner with anything touching audio and oscillating circuits.
Pointers toward good sources of information would be really welcome!

Thanks a lot.