The search function for this forum is useless at the moment, it seems, but by manually going through one page after another and doing searching each for the word "spell", I actually found the list of spells I put in here! It's not the updated one I lost, but at least it saves me the effort of rediscovering some of the incantations and effects. I'll just grab that and save it, so that I have my spellbook again.
Here it is again, for anyone that might be curious about it:

[hider=Spellbook]
[I][B]Arcane spells:[/B][/I]
[B]Acidic Lunge:[/B] [I]Thoph menrirl kohrx vanedth maaez grumert, cowath thoujm vanedth dregoth, harteor setogar jhoon.[/I] "Extract air [and] change [it to] liquid water [and] earth, [with the] power [of] destruction [of] liquid fire, [and] release [it] projected [from] myself." Forms a glob of extremely potent acid in front of the caster, which hurls itself in whatever direction the caster desires to rapidly corrode anything it touches. [B]Alternate versions: Air-affinity (Corrosive Fog)[/B]: When striking a target the glob will, instead of splattering, disperse into green fog that spreads over a progressively growing area, continuously corroding anything within it with exponentially decreasing efficiency until it disperses altogether. [B]Water-affinity (Acid Fist)[/B]: The glob of acid is launched with far greater force and velocity than usual, and is capable of knocking a grown man off his feet in addition to its corrosive properties. [B]Earth-affinity (Greater Acidic Lunge)[/B]: Improves upon the normal version by greatly increasing the corrosive properties of the spell. [B]Fire-affinity (Burning Glob)[/B]: In addition to its usual properties, the acid made by the spell also manifests as heated almost to the point of vaporizing, and will both corrode and burn anything it hits for increased destructive properties.
[B]Bonds of the Land:[/B] [I]Thoph smaiwe gohn grumert sonedth, tuagar eren meethal caihl menrirl, lemesatheli dweneth lemesatheli, dweneth sonedth meethal xarthliir caihl menrirl, kohrx harteor dweneth, lemesatheli brega, jhoon cowath.[/I] "Summon [the] hardness of stone, small [and] flat spheres [with] holes [of] air, copy [and] lock [these together and] copy [again], lock [together] strongly [with a] cylinder penetrated [by] air, alternately open [or] locked, copy all, [put it in] my power." High-difficulty spell that forms shackles of the minerals of the soil, with the bindings, once closed, being unlocked by the caster's will alone. [B]Alternate versions: Earth- or stone-affinity (No name)[/B]: creates bulkier, even stronger shackles. [B]Air-affinity (No name)[/B]: Shackles are lighter and frailer, but can be remotely moved by the caster's will.
[B]Boom:[/B] [I]Dweneth baadas meethal menrirl, harteor jhoon cowath thagir.[/I] "Hold sound [in a] sphere [of] wind, unleash [it by] my [will as a] powerful explosion." Causes a deafening burst of sound to emit from the caster. [B]Alternate versions: Sound-affinity (Dread Pandemonium)[/B]: Causes a sound even louder than the normal version, capable of bursting most eardrums and causing unconsciousness within several feet of the caster. [B]Air-affinity (Cry of Dismissal)[/B]: Adds a shockwave to the burst of sound, knocking down those near the caster in addition to deafening and dazing them.
[B]Electric Surge:[/B] [I]Thagir dhnirhilk atonakuv, setogar jhoon.[/I] "Spread out/cause explosion [of] chaotic lightning, projected [from] myself." A low-difficulty spell that causes the caster's body to briefly wrap in electricity, which then immediately leaps outward in all directions and electrocutes anything and anyone within range. [B]Alternate versions: Lightning-affinity (No name)[/B]: Results in a significantly more deadly Electrical Surge, with a much larger area of effect. [B]Chaos-affinity (Lightning Vortex)[/B]: The spell manifests not as lightning spreading out from the caster, but as a number of arcing bolts of lightning that are projected continuously for several seconds, whipping from side to side and up and down, electrocuting whatever they touch. Has longer range and higher destructive power than the original, but is less reliable as not all targets might be near the randomly appearing arcs of lightning.
[B]Emberstorm:[/B] [I]Lemesatheli lemesatheli tuagar dregoth, raithla faihgn menrirl gnaihf jhoon.[/I] "Copy [and] copy [over] shrunken flame, not moved [by] wind [and] instead [by] me." Summons a multitude of tiny specks of fire from the center of the caster's palms, which will move as directed by the caster's will independently of ambient wind. Each bit of flame has limited destructive potential and are relatively harmless, although they have been known to ignite flammable materials they come into direct contact with. [B]Alternate versions: Fire-affinity (Firestorm)[/B]: Causes the flames created by the spell to radiate significantly more heat than the original version, allowing ignition of materials to occur faster and lending the spell greater destructive power. [B]Air-affinity (No name)[/B]: Causes the air within the Emberstorm to move with the magic, making the movement of the flames also create gusts of wind dependent on its movement speed.
[B]Fireball:[/B] [I]Purthev cowath thagir meethal dregoth.[/I] "Summon [a] powerful explosive ball [of] fire." Very popular low-difficulty energy-expensive spell that summons a single large orb of self-contained flame, which is launched in a given direction at the caster's command. Upon impact with any physical obstruction it will detonate into an explosion of considerable force and heat. [B]Alternate versions: Fire-affinity (Greater Fireball)[/B]: The fireball burns even more intensely than usual, and upon exploding will unleash a scorching inferno to burn adjacent targets even more than the original version would have.
[B]Flaming Volley:[/B] [I]Purthev tuagar meethal dregoth harteor dregoth thagir, lemesatheli raithla lemesatheli, cowath gohn shnail jhoon.[/I] "Summon small balls [of] fire [that] unleash fiery explosions, copy [in] another place [and] copy [more], [its] power belongs [to its] master [who is] me." Creates a number of small fireballs in front of the caster, which will hold stationary in relation to the caster until commanded to move, at which time they will shoot forward and upwards to rain down on the area of effect, causing fiery explosions where they hit. [B]Alternate versions: Fire-affinity (Greater Flaming Volley)[/B]: The fireballs created by the spell burn more hotly and brightly, and upon impact create much more devastating explosions capable of charring flesh in an instant.
[B]Gravitational Defiance:[/B] [I]Dweneth jhoon raithla peigein grumert, tuagar jhoon sonedth brega menrirl.[/I] "Seal my movement towards [the] ground, diminish my solidity [and make me] one with [the] wind." Causes the gravitational acceleration of the caster to decrease greatly and usually sets their terminal velocity to a non-lethal speed to allow long falls to be endured without sustaining injury or death.
[B]Spark Javelin:[/B] [I]Setogar atonakuv jhoon, dweneth cowath tywrui thoulg, raithla gohn peignein.[/I] "Project lightning [from] myself, constraining [its] power [in a] elongated [and] sharp [shape], moving [to] its destination." Creates an electrical charge in the caster's hand, to be launched in any desired direction. Upon launch it will assume the appearance of a short spear made of lightning, which will travel unwaveringly forward, potentially passing through and electrocuting numerous targets before its energy is depleted. [B]Alternate versions: Lightning-affinity (Lightning Spear)[/B]: Creates a bigger, even more powerful electrical projectile that can char flesh at contact and travel further than the original spell.
[B]Spectral Projection:[/B] [I]Thoph setogar gohn jhoon, caihl brijhal caihl gothor, peigein brega.[/I] "Summon [the] projection owned [by] me, [which] pierces light [and] pierces shadow, [and let that] place [and this] become one." Projects the caster's senses to another location, allowing one to see and hear what occurs elsewhere without being physically present. [B]Alternate versions: Shadow-affinity (Shadow Image)[/B]: Instead of creating an invisible projection of the caster's senses, this spell forms a ghostly black silhouette of the caster at the location and allows it to not only sense through this, but also speak through and invoke magic through it. [B]Light-affinity (Blinding Visage)[/B]: Like Shadow Image, this causes the appearance of a visible form at the destination of the spell, only now the spell will manifest as a brightly glowing phantom, through which the caster can sense and speak, but not invoke magic.

[B][I]Black spells:[/I][/B]
[B]Shared Fate:[/B] [I]Biehl bethaath qyth gaath veehn voohl.[/I] "Bind [together] lives [and] fates, [let] death [call for] powerful retribution." Magically joins the fates of the caster and the target, ensuring that if either of them dies while the spell is in effect, so will the other.[/hider]

EDIT: Now why is that Hider not working...
EDIT2: Actually, what is up with the Arcane Spells section-header, too...

As for the parallel processing of human minds and its capability for switching focus quickly but keeping each process running continuously, it's something I grew rather familiar with during some of the bore boring/easy classes/lectures I've had to attend over the years. I'd sit with my laptop in front of me, looking at the blackboard and following the lecture with my eyes and pseudo-subconsciously listen to what was being said, while consciously focusing on the laptop where I'd be writing some story or another (it's amazing how reliable muscle-memory can be when your brain is not trying to interfere; I think I've made [I]less[/I] typos while trying to pay attention to something else than I have focusing on writing, on a errors per time-basis). It's for that same reason that I've always tended to look somewhat skeptically at people claiming (very confidently, too) that one can only think of one thing at the time.
Interestingly I find that my focus is usually more reliable when running parallel processes than when I'm focusing on one particular thing. During those classes/lectures I pretty much never lost track of where I had gotten to in writing, or what was going on (though there usually was a short pause whenever I was asked a question during which I had to quickly recount what had just been said to myself), but when I try to concentrate... For instance, I'm pretty focused when playing Dark Souls, but if someone walks between me and the monitor while I'm playing - even if they're just walking past and only occupy the space for a split-second - I can feel like I have to get my bearings again all over, as though I've completely lost track of where I am in the game and what I am doing. That's probably one of the reasons that I like listening to music while writing, since otherwise I get distracted much too easily.

As for the matter of having songs stuck in my head, that does occasionally happen, yes... though not the "true" version of the song. I know what the song sounds like, of course, but the version playing in my head tends to be one isolated piece of sound, like just the vocal artist, or just one or two instruments rather than the combined musical score. And it's usually just a short bit of the song rather than the song in its entirety, like the chorus, or even just part of the chorus. And don't even get me started on remembering the lyrics... (I think the only songs I am currently capable of correctly reciting the lyrics from (that have lyrics) are Still Alive and Want You Gone, from Portal and Portal 2 respectively.)
I enjoy listening to music, but I guess my memory is just more visual than it is auditory.