======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '79'
                                          'artist'  'Blowfly'
                                     'text_people'  ''
                                         'release'  'Oldies But Goodies'
                                           'title'  'Blue Balls'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-2', 'Q-UNU-1', 'Q-JZFKS-4', "
 "'Q-OLDST-2', 'Q-BUSY-2', 'Q-GRIT-2', 'q-bass-4', 'q-drums-3', 'q-other-2', "
 "'q-piano-1', 'q-vocals-4', 'Q-SYN-2', 'Q-PLAY-3', 'Q-CHART-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['funk', 'soul', 'comedy', 'hip-hop']"
                                     'discogstags'  "['rock & roll', 'comedy', 'parody', 'rock', 'blues', 'non-music']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '25'
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'funk or soul-funk'
                                             'bpm'  '128.7'
                                             'key'  '7A'
                                        'acoustid'  '76fea56b-d0ef-44e0-883e-33e0f5bb2517'
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Oldies But Goodies'
'TBPM' (BPM (beats per minute))                     '128.7'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul-funk'
'TDOR' (Original release time)                      '1977'
'TDRC' (Recording time)                             '1977'
'TIT2' (Title/songname/content description)         'Blue Balls'
'TKEY' (Initial key)                                '7A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Blowfly'
'TPE2' (Band/orchestra/accompaniment)               'Blowfly'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '5/25'
'TSO2'                                              'Blowfly'
'TSOP' (Performer sort order)                       'Blowfly'
'TXXX:Acoustid Id'                                  '76fea56b-d0ef-44e0-883e-33e0f5bb2517'
'TXXX:Artists'                                      'Blowfly'
'TXXX:MusicBrainz Album Artist Id'                  '47e10a96-cd1a-4fd9-947e-87b1a201284e'
'TXXX:MusicBrainz Album Id'                         '0a16e289-9222-41df-8b8d-6ac1e1b3441c'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '47e10a96-cd1a-4fd9-947e-87b1a201284e'
'TXXX:MusicBrainz Release Group Id'                 '61821e79-7d35-4b2d-b964-84df6eddd3dd'
'TXXX:MusicBrainz Release Track Id'                 '5afeb239-1abc-3ce9-a85c-7f89a4c70860'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '4'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock & roll', 'comedy', 'parody', 'rock', 'blues', 'non-music']
'TXXX:lastfmtags'                                   ['funk', 'soul', 'comedy', 'hip-hop']
'TXXX:originalyear'                                 '1977'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.02 dB'
'TXXX:replaygain_track_peak'                        '0.482942'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'4a1ed121-3031-4021-9f66-f72cd5db7b6f')

========================== row from database ==========================
                                              'id'  1484924
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/blowfly - 1976 - oldies but goodies/05 - blue balls.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  79
                                           'genre'  funk or soul-funk
                                        'filesize'  1378227
                                           'mtime'  1620665570
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy blowfly 1976 oldies but goodies 05 blue balls funk or soul funk
                                      'tag_artist'  Blowfly
                                     'tag_release'  Oldies But Goodies
                                       'tag_title'  Blue Balls
                                             'bpm'  128.7
                                    'search_title'  'balls':2 'blue':1
                                   'search_artist'  'blowfly':1
                                  'search_release'  'but':2 'goodies':3 'oldies':1
                                     'search_rest'  '1976':3 'balls':8 'blowfly':2 'blue':7 'but':5 'classicprogpsy':1 'funk':9 'goodies':6 'oldies':4 'or':10 'soul':11
                                    'search_combo'  '1976':9 'balls':2A,14 'blowfly':3B,8 'blue':1A,13 'but':5C,11 'classicprogpsy':7 'funk':15 'goodies':6C,12 'oldies':4C,10 'or':16 'soul':17
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-4', 'Q-CHART-2', 'q-drums-3', 'Q-SYN-2', 'q-other-2', 'Q-BUSY-2', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['funk', 'soul', 'comedy', 'hip-hop']
                                        'tag_date'  1977
                                     'discogstags'  ['rock & roll', 'comedy', 'parody', 'rock', 'blues', 'non-music']

============================== file details ==============================
                                           'mtime'  1620665570.474084  (2021-05-10 18:52:50)
                             'size'  1378227