MIDI drums and some FM percussion under live-synthesized dual leads.
One channel is an ADSR signal output used as a control voltage to sweep evenly down through a series of harmonized sine waves in a wavetable oscillator.
These sweeps themselves change pitch according to simple MIDI sequence.
The same sequence is also triggering a synth in the other channel - also a sine with slight FM modulation and heavy tremolo (almost like a "phone off the hook" sound).
The nursery room melodies of this and many other recent songs are inspired by the idea of what Karl Orff called "streetsongs" - simple figures anyone can play as an ensemble. The timbres of the electronic instruments are the main focus here.

...plus some percussion, and it's in 9/8 time! Woo.

More synthetic jazz combo stuff, with dramatic piano chords trying diligently to stay in the approximate tonal range of a quavery '60s style modular moog (not actually a Moog but whatever), while an imagined drummer with an unfiltered cigarette hanging out of his mouth keeps the thing regimented.

Primitive techno-trance -- am biased but especially liking the sine wave "flute" that comes in at :37.
The pulse width of the square wave that runs underneath is being widened and narrowed by a slow-ish LFO sweep.

Part one is a mangled organ sample using the Doepfer A-112 wavetable function with an offset/attenuated LFO hitting various tables (the sample is cut up and pieces of it are treated as playable waves that are arbitrarily ordered in a grid).
Part two is live FM synth and a different set of (prepackaged) wavetables played with a different module.
The beats are Reaktor Rhythmmaker.

A slightly melancholy nursery tune. MIDI notes playing 3 hardware oscillators* tuned to make a chord - with LFO tremelo on 2 of the oscillators' VCA control voltages. Some obscure Hammond B-3 licks (taken out of context) on the fade.

*1 Doepfer triangle (low note) and 2 Gamma Wave Source

More rearranged drum-and-bass, almost becoming...dubstep. The "profit" pad is from the Synth Mania website, also rearranged.

Variation 1 / Variation 2

A mix of granularized and hardware-sampled percussion with a thrilling conclusion of haltingly shredded breakbeats.

This song has a message and the message is "I don't care." (Technical note to self: the main synth is the A-112 wavetable playing a sample of the Vermona Perfourmer and harmonizing with another Perfourmer riff played simultaneously with the same MIDI notes. The guitar amp-like vibrato is made with an ADSR envelope's control voltage plugged into the A-112's CV in.)

The song is kind of jazzy and the title is kind of a parody of a jazz song title from the '50s. This is a substantial reworking of a song I don't yet have the fortitude to post, with the working title "Barney's Bag (Chipmunks)," which features chipmunk-like vocalese made with live FM synthesis.
This version has the synth-bass-piano combo I've been working with in recent songs; I had to write some harmony to make this work. (Monk meets Glass in a robo-carwash.)