======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '300'
                                          'artist'  'Fitzgerald'
                                     'text_people'  ''
                                         'release'  'Nothing But... Disco Selections 01 (2016)'
                                           'title'  'Excuses (Original Mix)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['american', 'i am pretty sure i get indie cred for liking this band', "
 "'folklore', 'lullaby', 'matias']")
                                     'discogstags'  "['folk, world, & country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '123.01'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Nothing But... Disco Selections 01 (2016)'
'TBPM' (BPM (beats per minute))                     '123.01'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Excuses (Original Mix)'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Fitzgerald'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'folk, world, & country'
'TXXX:lastfmtags'                                   ['american',
 'i am pretty sure i get indie cred for liking this band',
 'folklore',
 'lullaby',
 'matias']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.87 dB'
'TXXX:replaygain_track_peak'                        '0.553320'

========================== row from database ==========================
                                              'id'  1333942
                                            'path'  /data/Music/Bulk/00poprockelectronic/Marvin & Guy - 2015-2016/Fitzgerald - Excuses (Original Mix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  300
                                           'genre'  electronic-unsorted
                                        'filesize'  12226000
                                           'mtime'  1620571002
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Marvin & Guy 2015 electronic unsorted
                                      'tag_artist'  Fitzgerald
                                     'tag_release'  Nothing But... Disco Selections 01 (2016)
                                       'tag_title'  Excuses (Original Mix)
                                             'bpm'  123.01
                                    'search_title'  'excuses':1 'mix':4,5 'original':2,3
                                   'search_artist'  'fitzgerald':1
                                  'search_release'  '2016':6,7 'but':2,3 'disco':4 'nothing':1 'selections':5
                                     'search_rest'  '00poprockelectronic':1 '2015':4 'electronic':5 'guy':3 'marvin':2 'unsorted':6
                                    'search_combo'  '00poprockelectronic':14 '2015':17 '2016':12C,13C 'but':8C,9C 'disco':10C 'electronic':18 'excuses':1A 'fitzgerald':6B 'guy':16 'marvin':15 'mix':4A,5A 'nothing':7C 'original':2A,3A 'selections':11C 'unsorted':19
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['american', 'i am pretty sure i get indie cred for liking this band', 'folklore', 'lullaby', 'matias']
                                        'tag_date'  2016
                                     'discogstags'  ['folk, world, & country']

============================== file details ==============================
                                           'mtime'  1620571002.026447  (2021-05-09 16:36:42)
                             'size'  12226000