Music Core brought back the show's chart on April 20, 2013. First-place winners are determined using the ranking system below. The list also shows the current and former scoring computation used. As of June 8, 2013, four nominees had decreased to three nominees. This chart is called
M-chart, and tracking from Monday to Monday of the following week. Asterisk (*) indicates the criteria that are for first-place nominees only. Based source and explanations for each criterion, in alphabetical order: •
Broadcast: MBC radio (April 22, 2017 - now) + TV (February 27, 2021 - now). •
Digital sales: Numbers of download, streaming based on
Gaon digital chart. During the time that Vibe and FLO sponsor Music Core, this also include Vibe and FLO respectively as a separate criterion and that criterion is for first-place nominees only •
Live-vote: Voting during the show. Currently via text message + Mubeat app (June 5, 2021 - now). Always for 1st place nominees only. •
Physical sales: Number of copies, based on
Gaon album chart •
Pre-vote: Mubeat app. Before February 27, 2021; this criterion is only for 1st place nominees only. This is held from Tuesday to Thursday (mean 4 days prior to 2 days prior; before February 27, 2021 is Tuesday to Friday, which mean 4 days prior to a day prior). •
Video views or
SNS:
YouTube views, only count from official MV. •
Viewer committee: A survey via official Music Core website, 2000 MBC accounts will be randomly chosen to be part of viewer committee voting. This is held from Wednesday to Thursday. The Top 50 songs of the week are featured on the show, where the Top 30–11 songs are shown via two marquee (one is for 30-21 and another is for 20-11) in the last of two different stages and the Top 10–4 songs are featured by the hosts. The hosts then showcase the Top three songs and announce who will be the winner of the week. The Number 1 song on the chart is the winner of that week's chart and receives an award. Every songs that have been released no more than two months and not got quintuple crown (i. e: 5 wins in this show) yet are eligible on chart. However, OST, songs released through audition program and deemed unsuitable (at MBC's discretion) is not eligible. For top 50 songs of the week (full chart), it will be posted on music show's official website every Monday/Tuesday/Wednesday of the following week. From May 20, 2017, to February 20, 2021, the rule was every song that is
not released no more than three months is eligible. Before May 20, 2017; every songs, regardless of when it release or number of time get the first place, are eligible. ==List of winners==