======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '62'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'no title'
                                           'title'  'Soft Drinks in Cans - Just Married - Alcoa'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '73'
                                      'tracktotal'  '98'
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials;set-pl-mor'
                                             'bpm'  '128.740'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'no title'
'TBPM' (BPM (beats per minute))                     '128.740'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-commercials', 'set-pl-mor']
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Soft Drinks in Cans - Just Married - Alcoa'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               '73/98'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.53 dB'
'TXXX:replaygain_track_peak'                        '0.512326'

========================== row from database ==========================
                                              'id'  958890
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/commercial_psa/car ads and PSAs/car ads and PSAs - 73. soft drinks in cans - just married - alcoa.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  62
                                           'genre'  nonmusic-commercials;set-pl-mor
                                        'filesize'  1007657
                                           'mtime'  1620525238
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer commercial_psa car ads and PSAs car ads and PSAs 73. soft drinks cans just married alcoa nonmusic commercials;set pl mor
                                      'tag_artist'  [unknown]
                                     'tag_release'  no title
                                       'tag_title'  Soft Drinks in Cans - Just Married - Alcoa
                                             'bpm'  128.74
                                    'search_title'  'alcoa':7 'cans':4 'drinks':2 'in':3 'just':5 'married':6 'soft':1
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'no':1 'title':2
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '73':12,13 'ads':9 'alcoa':19 'and':10 'cans':16 'car':8 'commercial':6 'commercials':21,23 'drinks':15 'just':17 'married':18 'mor':26 'movietrailer':5 'nonmusic':20 'pl':25 'psa':7 'psas':11 'radio':4 'set':22,24 'soft':14 'tv':3
                                    'search_combo'  '00commercials':13 '0nonmusic':12 '73':23,24 'ads':20 'alcoa':7A,30 'and':21 'cans':4A,27 'car':19 'commercial':17 'commercials':32,34 'drinks':2A,26 'in':3A 'just':5A,28 'married':6A,29 'mor':37 'movietrailer':16 'no':10C 'nonmusic':31 'pl':36 'psa':18 'psas':22 'radio':15 'set':33,35 'soft':1A,25 'title':11C 'tv':14 'unknown':8B,9B
                                    'tag_tracknum'  73
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525237.848853  (2021-05-09 03:53:57)
                             'size'  1007657