GratefulHeads blends public archival data from the Internet Archive Live Music Archive, Relisten, DeadBase polls, and open community voting, with full respect to earlier community touchstones like headyversion.com and herbibot.com.

How Historical Scores (0–100) Work

Each show is scored from 0 to 100 by combining its percentile rank across four public signals, plus a bonus if it placed in published fan polls:

• 40% Archive.org rating (weighted across all recordings of that date, Bayesian-smoothed so a tape with 2 reviews doesn't outweigh a classic with 300 reviews).
• 20% Archive.org review count (how widely discussed the show is).
• 25% Total Archive.org downloads across all sources for that date.
• 15% Recent listening activity (last 30 days of Relisten plays for GD / Archive downloads for JGB).
• + Poll bonus (up to +15 points) for shows and versions ranked in published community polls like DeadBase and r/gratefuldead.

For individual song versions, the score blends the show's consensus score with how long that performance is compared to the typical length of that song (35% weight for jam vehicles over 7 minutes, 15% for shorter songs), plus any song-specific poll bonuses.

Open Voting (No Sign-Up)

You don't need an account to vote. Clicking ▲ or + Add vote records one vote per version per device/IP hash and adds it to the Active Votes page.