======================== unified (from filesystem) ========================
                                         'bitrate'  '64.0'
                                        'duration'  '61'
                                          'artist'  'The Supremes'
                                     'text_people'  ''
                                         'release'  'Commercial'
                                           'title'  '60s Coke Ad'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-3', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['oldies', 'motown', 'female vocalists', 'soul', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '00'
                                      'tracktotal'  ''
                                            'date'  '1967'
                                        'comments'  ''
                                           'genre'  'nonmusic-commercials;set-pl-mor'
                                             'bpm'  '118.636'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'PCNT' (Play counter)                               PCNT(count=0)
'TALB' (Album/Movie/Show title)                     'Commercial'
'TBPM' (BPM (beats per minute))                     '118.636'
'TCON' (Content type, a.k.a. Genre)                 ['nonmusic-commercials', 'set-pl-mor']
'TDRC' (Recording time)                             '1967'
'TIT2' (Title/songname/content description)         '60s Coke Ad'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '61000'
'TPE1' (Lead performer(s)/Soloist(s))               'The Supremes'
'TRCK' (Track number/Position in set)               '00'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['oldies', 'motown', 'female vocalists', 'soul', '60s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.401160'

========================== row from database ==========================
                                              'id'  957110
                                            'path'  /data/Music/Bulk/0nonmusic/00commercials-tv-radio-movietrailer/commercial_psa/60s_Coke_Ad_-_The_Supremes.mp3
                                         'working'  None
                                         'bitrate'  64
                                    'duration_sec'  61
                                           'genre'  nonmusic-commercials;set-pl-mor
                                        'filesize'  493440
                                           'mtime'  1620524746
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00commercials tv radio movietrailer commercial_psa 60s_Coke_Ad_ _The_Supremes nonmusic commercials;set pl mor
                                      'tag_artist'  The Supremes
                                     'tag_release'  Commercial
                                       'tag_title'  60s Coke Ad
                                             'bpm'  118.636
                                    'search_title'  '60s':1 'ad':3 'coke':2
                                   'search_artist'  'supremes':2 'the':1
                                  'search_release'  'commercial':1
                                     'search_rest'  '00commercials':2 '0nonmusic':1 '60s':8 'ad':10 'coke':9 'commercial':6 'commercials':14,16 'mor':19 'movietrailer':5 'nonmusic':13 'pl':18 'psa':7 'radio':4 'set':15,17 'supremes':12 'the':11 'tv':3
                                    'search_combo'  '00commercials':8 '0nonmusic':7 '60s':1A,14 'ad':3A,16 'coke':2A,15 'commercial':6C,12 'commercials':20,22 'mor':25 'movietrailer':11 'nonmusic':19 'pl':24 'psa':13 'radio':10 'set':21,23 'supremes':5B,18 'the':4B,17 'tv':9
                                    'tag_tracknum'  None
                                      '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-3', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['oldies', 'motown', 'female vocalists', 'soul', '60s']
                                        'tag_date'  1967
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620524746.4400826  (2021-05-09 03:45:46)
                             'size'  493440