Portal:Personal Music Charts

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The personal digital music collection of Michael L. Douglas, MD, MBA exists within a cloud storage framework and consists of more than 7 terabytes of data. Dr. Douglas converted his entire compact disc collection into .mp3 files in 2005. At the time, the digital space occupied by the collection was approximately 4.5 terabytes of data. Since that time, Dr. Douglas has enriched his collection to its present volume today. It is accessible via password-protection within the S3 service sector of the Amazon Web Services (AWS) platform, where each stored track is systematically encrypted. The individual stored tracks comprise the essence of Dr. Douglas's digital music collection and are the collection's functional units. Each track is associated within a folder which is generally named for the album from which the track is associated. The album collections are arranged within root folders generally named after the recording artists with which each collection subfolder is associated. The artist subfolders are part of a root folder system which is arranged chronologically and alphabetically within the appropriate sector of Dr. Douglas's encrypted cloud storage. Dr. Douglas's digital music collection is arranged in digital buckets alongside other digital media; these other media collections include (but are not limited to) digital video files, uploaded podcast files, and protected document files, the majority of which are PDF formatted.


Dr. Douglas has utilized his massive digital music collection in many ways since initial conversion from digital analog (compact disc) formats in the mid-2000s. Since the initial conversion, he has created a now-defunct podcast (Doctor Pundit 80s Radio Show, which ran from 2005-2008); uploaded to iTunes (iPod playlists); experimented with various online internet radio schemes; and uploaded/synced to streaming services (the retired Amazon Music Locker, Spotify Local Tracks).

Currently, Dr. Douglas utilizes Spotify for its Local Tracks option, which allows users to stream tracks unavailable on its service by syncing the service with the user's local hard drive via a local network. He uses this option to recreate selected Billboard Hot 100 charts. Dr. Douglas uses the Apple Music Your Library upload feature for the same purpose, but mostly as an album aggregator for titles not available on the streaming service. Dr. Douglas has canceled his patronage of Amazon Music. (He has subsequently stored his entire uploaded Amazon Music Locker library within the AWS cloud.)

Dr. Douglas uses the Spacial Cloud platform to run 15 online radio stations whose playlists are culled entirely from his digital music collection. The online radio library and individual station descriptions can be found here. All stations are housed on the Radio.net internet radio portal. The flagship station -- Doctor Pundit 80s Radio -- is also hosted on the Tunein portal.


Dr. Douglas's affinity for recorded music began as a child. He was a devoted listener and fan of Casey Kasem, the legendary disc jokey who hosted the initial iteration of the long-running American Top 40 franchise. In the late 1970s, Dr. Douglas consumed the weekly show and began collecting favorite music via vinyl. He collected both vinyl 45s and entire albums for much of the following decade. He followed this collection with the accumulation of compact discs, until the turn of the 21st century.

Dr. Douglas has subscribed to Billboard magazine for much of the past thirty years. He is a fan of many of the industry periodical's charts, particularly the pop (Hot 100), R&B (Hot R&B/Hip-Hop Songs), and albums (Billboard 200) charts. Many of the trade's fans correspond with its writers and columnists. Many are also staunch disciples of the methodologies employed in generating the trade's most popular charts. Dr. Douglas, like many of Billboard's advocates and fans, has also compiled many of his favorite songs he plays daily into personal charts. Fans and hobbyists attest to the satisfaction derived from this activity. The Internet, along with the proliferation of social media outlets, has made not only posting charts, but sharing them with other enthusiasts, extremely popular.



The tracking week for streaming commences on Thursday and ends on the following Wednesday. A new chart is compiled and officially released on this wiki no later than the subsequent Friday. Each chart is dated (location: at its apex) with the "week-ending" issue date, coinciding with simultaneous refreshes of the main WT40 chart, its archived links, and the "The WT40 Top Ten Hits" page. For example:

  • Thursday, January 1 – streaming tracking-week begins
  • Wednesday, January 7 – streaming tracking-week ends
  • Friday, January 9 – new chart released, with issue post-dated Saturday, January 10

Recurrents (Gold Titles)

In order to allow the Weekly Top 40 chart to remain as current as possible and to support developing tracks, titles are removed once those tracks have achieved certain criteria with respect to their weekly rankings and number of weeks logged on the chart. The criterion for "recurrent" status (but not outright removal from the chart) is triggered once a track has spent more than 18 total charted weeks on the WT40 and fallen (or peaked) below number 20 during a singular chart run. Additionally, tracks on the way down the chart are completely removed if the total number of weeks logged exceeds 40, anywhere on the tableau outside of the ten highest charting tracks (Top 10) of any given week. Recurrents are then added to Dr. Douglas's "MLD Pop Hit List" playlists on both Apple Music and Spotify services.


Dr. Douglas has posted personal song charts to various sites in the past. He has since taken down all of them. With respect to this wiki, he intends to reinvigorate his hobby and passion by posting charts that reflect his weekly listening habits and affinity for music charts ("chartistry").

Weekly Top 40 Songs

Dr. Douglas presents the 40 most played tracks he listens to weekly. All of the tracks' data originate from streamers Spotify and Apple Music. Previously, Dr. Douglas has posted rankings based upon data from Google Play Music, Amazon Music, and Pandora. Dr. Douglas has eschewed these latter services; therefore, they do not contribute data to the weekly rankings. The chart utilizes similar methodology and appearance to the appropriate Billboard singles charts. There are currently no plans to maintain a podcast version of this countdown. (Weekly episodes will continue to be broadcast on various Doctor Pundit radio stations during any given week.)

Weekly Top Albums

Dr. Douglas presents the most played albums via streaming. At the moment, he has no plans to include this particular chart within this wiki.

Year-End Chart Compilations

The special year-end survey of the top fifty tracks from the 2019 chart year of the Weekly Top 30 is found here.


The following are links to the weekly charts and their archives.