======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '37'
                                          'artist'  '[unknown]'
                                     'text_people'  'n/a'
                                         'release'  'n/a'
                                           'title'  "Daily Traffic Safety Tip - Your Milkman's Bottles"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '92'
                                      'tracktotal'  '98'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials;set-pl-mor'
                                             'bpm'  '141.118'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'n/a'
'TBPM' (BPM (beats per minute))                     '141.118'
'TCOM' (Composer)                                   'n/a'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-commercials', 'set-pl-mor']
'TDRC' (Recording time)                             '1970'
'TIT2' (Title/songname/content description)         "Daily Traffic Safety Tip - Your Milkman's Bottles"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TRCK' (Track number/Position in set)               '92/98'
'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'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.38 dB'
'TXXX:replaygain_track_peak'                        '0.544640'

========================== row from database ==========================
                                              'id'  1500175
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/commercial_psa/car ads and PSAs/car ads and PSAs - 92. daily traffic safety tip - your milkman_s bottles.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  37
                                           'genre'  nonmusic-commercials;set-pl-mor
                                        'filesize'  594714
                                           'mtime'  1620525269
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer commercial_psa car ads and PSAs car ads and PSAs 92. daily traffic safety tip your milkman_s bottles nonmusic commercials;set pl mor
                                      'tag_artist'  [unknown]
                                     'tag_release'  n/a
                                       'tag_title'  Daily Traffic Safety Tip - Your Milkman's Bottles
                                             'bpm'  141.118
                                    'search_title'  'bottles':9 'daily':1 'milkman':6 'milkmans':8 's':7 'safety':3 'tip':4 'traffic':2 'your':5
                                   'search_artist'  'unknown':1,2
                                  'search_release'  'a':2 'n':1 'na':3
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '92':12,13 'ads':9 'and':10 'bottles':21 'car':8 'commercial':6 'commercials':23,25 'daily':14 'milkman':19 'mor':28 'movietrailer':5 'nonmusic':22 'pl':27 'psa':7 'psas':11 'radio':4 's':20 'safety':16 'set':24,26 'tip':17 'traffic':15 'tv':3 'your':18
                                    'search_combo'  '00commercials':16 '0nonmusic':15 '92':26,27 'a':13C 'ads':23 'and':24 'bottles':9A,35 'car':22 'commercial':20 'commercials':37,39 'daily':1A,28 'milkman':6A,33 'milkmans':8A 'mor':42 'movietrailer':19 'n':12C 'na':14C 'nonmusic':36 'pl':41 'psa':21 'psas':25 'radio':18 's':7A,34 'safety':3A,30 'set':38,40 'tip':4A,31 'traffic':2A,29 'tv':17 'unknown':10B,11B 'your':5A,32
                                    'tag_tracknum'  92
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525268.55024  (2021-05-09 03:54:28)
                             'size'  594714