I am having quite some difficulty trying to determine the correct time signature as well as the tempo to match the rythm of the song I am trying to write for. It's not so much that I don't have an understanding of these concepts in theory, but in practice I can't get a grasp of it.
I have what I think may be a 3/4 time signature, though I do know for certain it's three beats of some note duration, it definitely has a ONE two three - ONE two three type of rhythm.
Though, I can't decide whether each beat is a 4th note at a faster tempo, or an 8th beat at a slower one.
For instance, these two 'beats' are identical, apart from the BPM and time sig, but the feel of it, and the paste of it are the same.
Here, the BPM is set to 210, but the note length span across for 1/3 of a bar.
Here, the BPM is reduced by 1/3 of it's initial value, 210 to 70, but the note length are also 1/3 of what they were, taking up 1/3 of, erm, a section of a bar?
When using a metronome, the bottom one sounds like the right tempo. However, my mentality is that without the metronome, then the bpm is the same anyway, not officially but within the song. But what I like about the bottom image is that it seems that the song itself would be easier to handle, since more content spans less distance, thus it seems I could get a better idea on what happens where in the song, since I can just 'see everything', or at least a lot more.
At the same time however, this is my first song, so am not really inclined to trust my own opinion just yet. So, am wondering if at first, if it even matters if I play a 210 bpm with longer notes, or 70 bpm but with the note lengths cut by 2/3's. Or, if this is of importance, how come, and what can I do to hone my skills in this particular area within music?