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Band Guide · Mastodon · Progressive Metal / Sludge Metal · Atlanta, Georgia

MastodonBand Guide

Formed 1999 · Atlanta, Georgia · Progressive Metal / Sludge Metal / Heavy Metal

Mastodon are one of the most important metal bands of the 21st century — four albums across the first decade of their career that constitute one of the most artistically consistent runs in heavy music history. Formed in Atlanta in 1999, they built their reputation on conceptually ambitious records tied to the four classical elements, culminating in Crack the Skye (2009), which is widely regarded as one of the greatest progressive metal albums ever made. Their achievement is that they made genuinely progressive, conceptually rich heavy music without ever losing the visceral physical impact that makes metal worth listening to at volume. This is the complete guide.

Best Songs Ranked Play Metal Heardle
Mastodon band photo
Formed1999Atlanta, Georgia
Studio Albums9
GenreProgressive MetalSludge / Heavy Metal
Best AlbumCrack the Skye2009
Start WithBlood and Thunder

Who Are Mastodon?

Mastodon are an American heavy metal band formed in Atlanta, Georgia in 1999. The classic lineup — Brann Dailor (drums, occasional vocals), Bill Kelliher (rhythm guitar), Brent Hinds (lead guitar, vocals), and Troy Sanders (bass, vocals) — has remained stable throughout their career. All four members contribute vocals in various combinations, which gives the band's sound a layered quality unusual in heavy metal, where a single lead vocalist is the norm.

The band's first four albums form a conceptual arc around the four classical elements: Remission (2002) fire, Leviathan (2004) water (a retelling of Herman Melville's Moby Dick), Blood Mountain (2006) earth, and Crack the Skye (2009) aether. Each record is also a progression — from sludge metal toward increasingly progressive territory, with more complex structures, more varied tempos, and increasingly ambitious conceptual frameworks. By Crack the Skye, they were making something that had no real precedent in heavy music.

Crack the Skye & the Death of Brann Dailor's Sister

Crack the Skye (2009) is Mastodon's most celebrated album and the one most frequently cited as a progressive metal masterpiece. The album is a concept record about astral projection and out-of-body experiences, set partly in the time of Rasputin. Its deepest personal significance, however, is as a tribute to Brann Dailor's sister Skye, who died by suicide at the age of fourteen when Brann was young. The album title is a direct reference to her name, and the emotional weight of loss and grief runs through the record in a way that connects the abstract conceptual framework to something genuinely human and devastating.

Dailor has spoken about the album in interviews as a kind of processing of a grief that had been carried for many years. The combination of personal loss and creative ambition gives Crack the Skye a depth of feeling unusual in progressive metal, which can sometimes feel more interested in technique than emotion. The album succeeds on both levels simultaneously.

New to Mastodon?

Start with "Blood and Thunder" — the most immediate and energetic track from Leviathan and still the best first listen. Then Crack the Skye (2009) as a full album — the masterpiece and the most complete expression of what the band can do. Leviathan (2004) is the essential historical companion.

Members

BD
Brann Dailor
Drums · Vocals · 1999–present
One of the most technically accomplished and musically inventive drummers in modern metal. Dailor's playing is polyrhythmic, busy, and melodically aware in a way that gives the songs a density that rewards repeated listening — his fills and patterns are not decorative but structural, contributing to the harmonic and rhythmic complexity that distinguishes Mastodon from simpler heavy bands. He also contributes lead vocals on several tracks. Crack the Skye is partly dedicated to the memory of his sister Skye.
BH
Brent Hinds
Guitar · Vocals · 1999–present
The band's lead guitarist and one of its primary vocalists. Hinds' guitar style ranges from sludge metal riffing to fluid, melodic lead work influenced by Southern rock and classic metal, and the combination gives the band its characteristic ability to move between aggression and melody within a single track. His voice — higher and more melodic than Sanders' — is central to the band's vocal layering approach.
TS
Troy Sanders
Bass · Vocals · 1999–present
The band's bassist and one of its primary vocalists, Sanders' lower register provides the anchor for the band's vocal harmonies. His bass playing is active in the arrangements — contributing melodic lines rather than simply supporting the guitar — and his voice in combination with Hinds' creates the dual-lead vocal approach that has been a consistent element of the band's identity. He handles the majority of vocal duties on most albums.
BK
Bill Kelliher
Guitar · 1999–present
The band's rhythm guitarist and the primary architect of their riff structures. Kelliher's rhythmic precision and his ability to lock in with Dailor's complex drumming give the band its physical heaviness — the quality that prevents the progressive ambition from becoming weightless. His relationship with Dailor in the rhythm section is central to what makes the band's sound work at the physical level that heavy metal demands.

Band History

1999
Mastodon form in Atlanta, Georgia, assembled from members of various Atlanta-area metal and hardcore bands. Brann Dailor and Bill Kelliher had previously played together in Today Is the Day.
2000
Self-titled EP released on Lifesblood Records. The recording establishes the band's basic sonic identity — heavy, sludgy, technically demanding — and attracts attention within the underground metal circuit.
2002
Remission released on Relapse Records. The debut full-length, themed around fire, introduces the band's combination of sludge metal aggression and progressive ambition. Critical reception is enthusiastic within the metal press.
2004
Leviathan released on Relapse Records — a concept album retelling Herman Melville's Moby Dick, themed around water. "Blood and Thunder" becomes the band's signature track. The album wins a Grammy nomination and significantly expands their audience.
2006
Blood Mountain released on Reprise Records — the major label debut, themed around earth. The album moves further toward progressive metal territory with more complex arrangements and cleaner production. "The Wolf Is Loose" and "Colony of Birchmen" are standout tracks.
2009
Crack the Skye released on Reprise — the band's masterpiece and one of the most acclaimed progressive metal albums ever recorded. Themed around aether and astral projection, the album was written partly as a tribute to Brann Dailor's sister Skye. "Oblivion" and "The Czar" are career-defining tracks.
2011
The Hunter released on Reprise. The album moves toward a more accessible sound with shorter, more immediate songs. The title track is dedicated to Brent Hinds' brother, who died in a hunting accident. A Grammy win for Best Metal Performance follows for "Curl of the Burl."
2014
Once More 'Round the Sun released. The band continue their exploration of accessible heavy rock while maintaining their technical proficiency and melodic sophistication.
2017
Emperor of Sand released — a concept album about mortality, written in response to cancer diagnoses among several band members' family members. Wins a Grammy for Best Metal Performance.
2023
Hushed and Grim (2021) and Rooms of Mirrors (2023) continue the band's prolific output, with Hushed and Grim — a double album dedicated to their late manager Nick John — receiving strong critical recognition.

Discography

2009
Crack the Skye
Oblivion, The Czar, Crack the Skye, The Last Baron. The masterpiece. One of the greatest progressive metal albums ever made. Start here.
Essential
2004
Leviathan
Blood and Thunder, I Am Ahab, Hearts Alive. The breakthrough — Moby Dick as progressive sludge metal. The essential historical entry point.
Essential
2006
Blood Mountain
The Wolf Is Loose, Colony of Birchmen, Sleeping Giant. The transitional record — more progressive, more melodic, essential for understanding the arc.
Essential
2017
Emperor of Sand
Sultan's Curse, Show Yourself, Steambreather. Grammy winner. The strongest later-era record — personal and emotionally weighty.
Great
2011
The Hunter
Curl of the Burl, Spectrelight, Blasteroid. More accessible than the masterpiece trilogy — a strong record that divides fans of the peak era.
Great
2002
Remission
March of the Fire Ants, Crusher Destroyer, Trampled Under Hoof. The debut — raw, heavy, essential for completists.
Good

Mastodon Trivia Quiz

Five questions — how many can you get right?

Best Songs by Mood

Not sure where to begin? Use this as your entry point.

First song ever
Blood and Thunder
Most transcendent
Oblivion
Most epic
The Last Baron
Most immediate
Curl of the Burl
Most progressive
The Czar
Most emotionally raw
Crack the Skye
Most aggressive
The Wolf Is Loose
Best deep cut
Hearts Alive

Mastodon FAQ

When did Mastodon form?
Mastodon formed in Atlanta, Georgia in 1999. The founding lineup of Brann Dailor, Bill Kelliher, Brent Hinds, and Troy Sanders has remained stable throughout their career. Dailor and Kelliher had previously played together in Today Is the Day before relocating to Atlanta and forming Mastodon.
What is Crack the Skye about?
Crack the Skye (2009) is a concept album dealing with astral projection, out-of-body experiences, and wormholes, set partly in the era of Rasputin's Russia. On a deeper personal level, the album is a tribute to drummer Brann Dailor's sister Skye, who died by suicide when Dailor was young. The album title references her name directly, and the emotional weight of loss and grief runs through the record. Dailor has described working on the album as a way of processing a grief he had carried for many years.
What is Leviathan about?
Leviathan (2004) is a concept album retelling Herman Melville's Moby Dick. Themed around the classical element of water, the album follows the narrative of the novel — Ahab's obsessive pursuit of the white whale — across its tracks, with individual songs corresponding to specific chapters or themes. "Blood and Thunder" opens with the white whale motif; "Hearts Alive" corresponds to the novel's final catastrophe. The album was the band's commercial breakthrough and remains one of the most celebrated metal concept albums.
What is the best Mastodon album to start with?
Crack the Skye (2009) is the most fully realised and widely acclaimed record and the best starting point for listeners who want to understand the band's peak. Leviathan (2004) is the best historical entry — the breakthrough album that contains "Blood and Thunder" and is slightly more immediately energetic than the masterpiece. Blood Mountain (2006) sits between the two in terms of accessibility and progressive ambition.
What are the classical elements in Mastodon's first four albums?
The first four Mastodon albums each correspond to one of the four classical elements: Remission (2002) fire, Leviathan (2004) water, Blood Mountain (2006) earth, and Crack the Skye (2009) aether. The elemental framework was a deliberate conceptual arc that the band described in interviews during this period, connecting each album's lyrical themes and sonic character to the associated element.
Has Mastodon won a Grammy?
Yes — Mastodon have won two Grammy Awards for Best Metal Performance: "Curl of the Burl" from The Hunter won in 2013, and "Sultan's Curse" from Emperor of Sand won in 2018. The band had previously received nominations for Leviathan and other releases.

See Also