======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '120'
                                          'artist'  'Wanda Jackson'
                                     'text_people'  ''
                                         'release'  "Queen of Rockabilly: The Very Best of the Rock 'n' Roll Years"
                                           'title'  'Baby Loves Him'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'country', 'female vocalists', 'rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '30'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '86.659'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     "Queen of Rockabilly: The Very Best of the Rock 'n' Roll Years"
'TBPM' (BPM (beats per minute))                     '86.659'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Baby Loves Him'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Wanda Jackson'
'TPE2' (Band/orchestra/accompaniment)               'Wanda Jackson'
'TRCK' (Track number/Position in set)               '1/30'
'TXXX:Encoder'                                      'Lame 3.98.4'
'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:lastfmtags'                                   ['rock and roll', 'country', 'female vocalists', 'rockabilly', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'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'                        '+2.22 dB'
'TXXX:replaygain_track_peak'                        '0.283203'

========================== row from database ==========================
                                              'id'  1530798
                                            'path'  /data/Music/Bulk/00poprockelectronic/Wanda Jackson/Queen of Rockabilly_ The Very Best of the Rock _n_ Roll Years/01 Baby Loves Him.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  120
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  4886589
                                           'mtime'  1620525988
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Rockabilly_ _n_ 01 rock rockabilly or psychobilly
                                      'tag_artist'  Wanda Jackson
                                     'tag_release'  Queen of Rockabilly: The Very Best of the Rock 'n' Roll Years
                                       'tag_title'  Baby Loves Him
                                             'bpm'  86.659
                                    'search_title'  'baby':1 'him':3 'loves':2
                                   'search_artist'  'jackson':2 'wanda':1
                                  'search_release'  'best':7 'n':9,10 'of':2 'queen':1 'rock':8 'rockabilly':3,4 'roll':11 'the':5 'very':6 'years':12
                                     'search_rest'  '00poprockelectronic':1 'n':3 'or':6 'psychobilly':7 'rock':4 'rockabilly':2,5
                                    'search_combo'  '00poprockelectronic':18 'baby':1A 'best':12C 'him':3A 'jackson':5B 'loves':2A 'n':14C,15C,20 'of':7C 'or':23 'psychobilly':24 'queen':6C 'rock':13C,21 'rockabilly':8C,9C,19,22 'roll':16C 'the':10C 'very':11C 'wanda':4B 'years':17C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  10B
                                           '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-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'country', 'female vocalists', 'rockabilly', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525987.9082878  (2021-05-09 04:06:27)
                             'size'  4886589