Vinyl Singles Charts
The Vinyl Singles Charts are monthly personal charts tracking the vinyl singles listening habits of King Warz. Data is collected by manually searching and selecting records from his physical vinyl collection through the app's web dashboard, and the charts are automatically generated by a custom-built program called KWC Vinyl Charts, developed with the assistance of Claude, an AI assistant by Anthropic.
The first chart, covering spins logged during March 1 – March 31, 2026, was generated and published on April 11, 2026.
Background
From streaming to vinyl
King Warz had been running personal streaming charts since November 2024, with data retroactively generated back to February 2020, powered by a program called Levboard which pulled data from his Spotify account via Stats.fm (see King Warz Charts). In early 2026, as his physical vinyl collection grew, Warz wanted a way to track and chart his vinyl spins with the same level of detail he had for streaming.
Spun It and its limitations
Warz initially used an app called Spun It to log his vinyl plays. While the app provided basic spin tracking, it did not offer everything he needed — features like chart generation, detailed statistics, and integration with his existing chart ecosystem were either missing or locked behind a paywall. Rather than continue paying for an incomplete solution, Warz decided to build his own system from scratch.
Building KWC Vinyl Charts
With the help of Claude, an AI coding assistant, Warz developed KWC Vinyl Charts — a fully custom application that replicates and expands on what Spun It offered. The program runs locally on his home server and handles both album and singles charts from a single system. For a full description of the application's capabilities, see Vinyl Album Charts: Building KWC Vinyl Charts.
Historical spin data from Spun It was imported into the system. These imported spins are preserved in the database for reference but are excluded from chart calculations to ensure only natively-tracked data influences chart positions.
How the singles charts work
Data collection
Singles are logged the same way as albums — by searching for and selecting the record through the web dashboard. Each spin records the timestamp, duration, full or partial play status, and the specific pressing (variant) in the collection. For full details on data collection, see Vinyl Album Charts: Data collection.
Chart period
Like the Vinyl Album Charts, the Vinyl Singles Charts operate on monthly periods:
- Each chart covers a full calendar month (1st to last day)
- Charts are numbered sequentially, sharing the same month number as the corresponding album chart (e.g., both Album Month 1 and Singles Month 1 cover March 2026)
- If a month does not meet the minimum threshold, no chart is generated
Eligibility
For a singles chart to be generated, at least 3 unique singles must have been spun during the chart period. Only spins with source other than import count toward eligibility.
The chart displays up to 5 singles, ranked by chart score.
Chart score
The singles chart uses the same no-ties scoring formula as the album chart:
chart_score = (adjusted_spins x 1000)
+ (previous_chart_points x 50)
+ (duration_minutes / 100)
+ (consecutive_months x 2)
+ (lifetime_adjusted_spins x 0.001)
+ (total_duration_seconds / 1,000,000)
For a detailed explanation of each factor, see Vinyl Album Charts: Chart score.
Spin ratings and their chart impact
Each spin can optionally be rated on a 1 to 5 star scale, with an optional comment about the listening experience. Ratings apply a multiplier to the spin's adjusted value, directly influencing the chart score:
| Rating | Multiplier | Effect |
|---|---|---|
| Unrated | 1.0x | Neutral |
| 1 star | 0.6x | Strong penalty |
| 2 stars | 0.8x | Moderate penalty |
| 3 stars | 1.0x | Neutral |
| 4 stars | 1.15x | Moderate reward |
| 5 stars | 1.3x | Strong reward |
For a full explanation of how ratings work, see Vinyl Album Charts: Spin ratings.
Points and units
- Points are awarded based on chart position:
(chart_size + 1) − position. On a 3-entry chart, #1 earns 3 points, #2 earns 2, #3 earns 1. - Units represent an all-time performance score:
Units = (2 x lifetime_adjusted_spins) + total_chart_points
Movement codes
The MV column shows how a single's position changed from the previous month:
- NEW — first-ever appearance on the chart
- RE — re-entry after being absent from the previous month's chart
- = — no change in position
- ▲N — moved up by N positions
- ▼N — moved down by N positions
Chart columns
| Column | Meaning |
|---|---|
| MV | Movement from previous month |
| Single | Single title and artist(s) |
| TW | This Week (current position) |
| LW | Last Week (previous month's position, or "-" if new) |
| MO | Months on Chart (total appearances) |
| SPN | Raw spin count during the period |
| PTS | Points earned this month |
| PK | Peak position (best-ever rank) |
Publishing
The publishing process is identical to the album charts. When a chart is published:
- A cover art collage is generated from the top 3 singles' artwork (displayed as a horizontal strip)
- The collage is uploaded to the wiki
- The chart page is created with the full article, infobox, statistics, and categories
- The chart is locked in the database
For full details on the publishing workflow, see Vinyl Album Charts: Publishing.
Differences from the Album Charts
| Feature | Album Charts | Singles Charts |
|---|---|---|
| Minimum releases for chart | 5 unique albums | 3 unique singles |
| Maximum chart size | 10 | 5 |
| Collage layout | 2×2 grid (top 4) | 1×3 horizontal strip (top 3) |
| ADJ column | Included | Not included |