======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '256'
                                          'artist'  'Mint Royale'
                                     'text_people'  ''
                                         'release'  'On the Ropes'
                                           'title'  "Don't Falter"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'electronica', 'electronic', 'big beat', 'house']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-bigbeat'
                                             'bpm'  '86.7'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'On the Ropes'
'TBPM' (BPM (beats per minute))                     '86.7'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-bigbeat'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         "Don't Falter"
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Mint Royale'
'TPE2' (Band/orchestra/accompaniment)               'Mint Royale'
'TPUB' (Publisher)                                  'MCA'
'TRCK' (Track number/Position in set)               '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dance', 'electronica', 'electronic', 'big beat', 'house']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.61 dB'
'TXXX:replaygain_track_peak'                        '0.385653'

========================== row from database ==========================
                                              'id'  1499726
                                            'path'  /data/Music/Bulk/00poprockelectronic/Mint Royale/On the Ropes/Mint Royale - 02 - Don_t Falter.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  256
                                           'genre'  electronic-generic or radio-bigbeat
                                        'filesize'  6162432
                                           'mtime'  1621696455
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 02 Don_t electronic generic or radio bigbeat
                                      'tag_artist'  Mint Royale
                                     'tag_release'  On the Ropes
                                       'tag_title'  Don't Falter
                                             'bpm'  86.7
                                    'search_title'  'don':1 'dont':3 'falter':4 't':2
                                   'search_artist'  'mint':1 'royale':2
                                  'search_release'  'on':1 'ropes':3 'the':2
                                     'search_rest'  '00poprockelectronic':1 'bigbeat':8 'don':2 'electronic':4 'generic':5 'or':6 'radio':7 't':3
                                    'search_combo'  '00poprockelectronic':10 'bigbeat':17 'don':1A,11 'dont':3A 'electronic':13 'falter':4A 'generic':14 'mint':5B 'on':7C 'or':15 'radio':16 'ropes':9C 'royale':6B 't':2A,12 'the':8C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['dance', 'electronica', 'electronic', 'big beat', 'house']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1621696454.817687  (2021-05-22 17:14:14)
                             'size'  6162432