The Moog guitar looks like a standard electric guitar.

But Fareed Haque knows from unpleasant experience that its innards are anything but standard.

"There's an incredible amount of technology inside that instrument," Haque said in a phone interview last week. "I was flying with the instrument, and ... I feel that airline security ... looked at my name - Fareed Haque - and looked at the guitar." He paused here, letting the implication settle. "I don't know they took it apart, but I know that when I got it, it wasn't all put back together. Which presented great difficulties for our performance that evening. It looked okay, and I sat down to play it, and all the guts just kind of fell out on stage."

He related this story with good humor, in part because it's understandable that transportation-security officials would be suspicious of the outwardly benign guitar with the unusual stuff inside.

Haque will be demonstrating that inner weirdness of the Moog guitar on November 27 at RIBCO, when he performs with his new trio MathGames, which also features drummer Greg Fundis and bassist Alex Austin.

The opening track of the Band of Heathens' One Foot in the Ether is classic electric alt-country, but a listener unfamiliar with the Texas quintet would be wise to withhold judgment or expectations. "L.A. County Blues" casually segues into soft harmonies recalling the 1970s in "Say," and then "Shine a Light" digs heavily into soulful, organ-heavy gospel.

That diversity of styles befits a group with three primary songwriters who each play multiple instruments, but it also reflects an understanding of the essential similarities shared by different branches of roots music.

"I've never seen blues music or soul music being very far away from country music or bluegrass," singer/songwriter Ed Jurdi said in a recent phone interview promoting the Band of Heathens' November 4 performance at the Redstone Room. "The approach is slightly different in terms of who's singing the song and what they sound like."

Songwriters Jurdi, Gordy Quist, and Colin Brooks - with bassist Seth Whitney and drummer John Chipman - are celebrating the fifth anniversary of their band this month, yet rather than settling on a sound, Band of Heathens has embraced a stylistic sloppiness.

It is with a laugh that Bruce Walters says, "There's no lightness in me."

Walters, a professor of art at Western Illinois University, was at Quad City Arts discussing Halloween Flight, an imposing collection comprising five distinct bodies of work employing autumnal motifs: a story of drawings from which the exhibit draws its name; selections from his Changelings series of drawings of masked people; a pair of lenticular prints (which create the illusion of motion based on the viewer's changing perspective); 15-foot-tall banner paintings under the title Sentries; and the Vultus projected video of 100 mask photographs.

His next project? A series based on the Tibetan Book of the Dead.

Walters might claim that he's obsessed with the dark imagery associated with Halloween - with its origins in the change of seasons from summer to fall, the ancient belief that spirits could enter the world of the living during this transitional period, and fall celebrations of the dead.

Yet one only needs to look at the variety of themes invoked in the work to see that Walters is more interested in exploring the fullness of the holiday than one particular aspect of it, and that it's not all darkness. The Halloween Flight story is simple, nostalgic, and quaint - Walters called it "idyllic" - using a child's vocabulary of motifs (a black cat, the moon, a graveyard, a ghost, trick-or-treaters) in evocative, lovingly detailed drawings. At the other end of the spectrum is Vultus, quietly sinister in its sequence of stark, high-contrast photos of masks, disturbing in both its vividness and inscrutable blankness. (In addition to being shown inside Quad City Arts for this exhibit - which runs through November 19 - Vultus will be projected outdoors at the Figge, Quad City Arts, and three other locations over the next few weeks.)

In 2007, Rolling Stone named Matt Pike one of its "new guitar gods," and the High on Fire frontman is notable for being among the two or three least-known people on a list that included John Mayer and members of the Red Hot Chili Peppers, Wilco, Tool, Pearl Jam, Rage Against the Machine, and Radiohead.

Pike is certainly a luminary in the world of metal - both the heavy and the stoner varieties with which he's associated - but he'd probably prefer to keep his appeal selective. High on Fire - performing at RIBCO on October 8 with Kylesa and Torche - is for metal purists, fans of Metallica's Master of Puppets who think that band has been pandering and floundering for the past two decades.

There's none of that desperation for acceptance with High of Fire, partly a function of its method. The songs are less organic than constructed out of often-disparate parts, and therein lies the key to both the music's appeal and difficulty.