======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '246'
                                          'artist'  'John Hiatt'
                                     'text_people'  ''
                                         'release'  'top100'
                                           'title'  'Have a little faith in me'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-OLDST-3', "
 "'Q-UNU-1', 'Q-PLAY-2', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-1', 'q-vocals-4', 'q-mixbeat-3', "
 "'Q-PIANO-4']")
                                      'lastfmtags'  "['blues', 'rock', 'alt country', 'americana', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-dance'
                                             'bpm'  '136.828'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'top100'
'TBPM' (BPM (beats per minute))                     '136.828'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-dance'
'TIT2' (Title/songname/content description)         'Have a little faith in me'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'John Hiatt'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Mp3gain_minmax'                               '086,186'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '4'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:Tracknum'                                     '086'
'TXXX:lastfmtags'                                   ['blues', 'rock', 'alt country', 'americana', 'singer songwriter']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.85 dB'
'TXXX:replaygain_track_peak'                        '0.665555'

========================== row from database ==========================
                                              'id'  1404074
                                            'path'  /data/Music/Bulk/00poprockelectronic-generic-dance-trapbeat/top100/086-John_Hiatt-Have_a_little_faith_in_me.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  246
                                           'genre'  electronic-generic or radio-dance
                                        'filesize'  3943023
                                           'mtime'  1621854168
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic generic dance trapbeat 086 John_Hiatt Have_a_little_faith_in_me electronic generic or radio dance
                                      'tag_artist'  John Hiatt
                                     'tag_release'  top100
                                       'tag_title'  Have a little faith in me
                                             'bpm'  136.828
                                    'search_title'  'a':2 'faith':4 'have':1 'in':5 'little':3 'me':6
                                   'search_artist'  'hiatt':2 'john':1
                                  'search_release'  'top100':1
                                     'search_rest'  '00poprockelectronic':1 'a':8 'dance':3 'electronic':13 'faith':10 'generic':2 'have':7 'hiatt':6 'in':11 'john':5 'little':9 'me':12 'or':14 'radio':15 'trapbeat':4
                                    'search_combo'  '00poprockelectronic':10 'a':2A,17 'dance':12 'electronic':22 'faith':4A,19 'generic':11 'have':1A,16 'hiatt':8B,15 'in':5A,20 'john':7B,14 'little':3A,18 'me':6A,21 'or':23 'radio':24 'top100':9C 'trapbeat':13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-mixbeat-3', 'Q-PIANO-4', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'rock', 'alt country', 'americana', 'singer songwriter']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621854168.1059523  (2021-05-24 13:02:48)
                             'size'  3943023