======================== unified (from filesystem) ========================
                                         'bitrate'  '224.543'
                                        'duration'  '302'
                                          'artist'  'Tears for Fears'
                                     'text_people'  ''
                                         'release'  'Songs From the Big Chair (disc'
                                           'title'  'Head Over Heels / Broken (live'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['80s', 'new wave', 'synth pop', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '94.857'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Songs From the Big Chair (disc'
'TBPM' (BPM (beats per minute))                     '94.857'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Head Over Heels / Broken (live'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tears for Fears'
'TRCK' (Track number/Position in set)               '7'
'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:lastfmtags'                                   ['80s', 'new wave', 'synth pop', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.51 dB'
'TXXX:replaygain_track_peak'                        '0.450514'

========================== row from database ==========================
                                              'id'  1339435
                                            'path'  /data/Music/Bulk/00poprockelectronic/album top 1000/0247 Tears for Fears - Songs from the Big Chair/Songs From the Big Chair (disc 1)-07-Head Over Heels Broken (live).mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  302
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  8498652
                                           'mtime'  1628353852
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic album top 1000 0247 from 1) 07 (live) electronic we electropop synthpop
                                      'tag_artist'  Tears for Fears
                                     'tag_release'  Songs From the Big Chair (disc
                                       'tag_title'  Head Over Heels / Broken (live
                                             'bpm'  94.857
                                    'search_title'  'broken':4 'head':1 'heels':3 'live':5,6 'over':2
                                   'search_artist'  'fears':3 'for':2 'tears':1
                                  'search_release'  'big':4 'chair':5 'disc':6,7 'from':2 'songs':1 'the':3
                                     'search_rest'  '00poprockelectronic':1 '0247':5 '1':7,8 '1000':4 'album':2 'electronic':11 'electropop':13 'from':6 'live':9,10 'synthpop':14 'top':3 'we':12
                                    'search_combo'  '00poprockelectronic':17 '0247':21 '1':23,24 '1000':20 'album':18 'big':13C 'broken':4A 'chair':14C 'disc':15C,16C 'electronic':27 'electropop':29 'fears':9B 'for':8B 'from':11C,22 'head':1A 'heels':3A 'live':5A,6A,25,26 'over':2A 'songs':10C 'synthpop':30 'tears':7B 'the':12C 'top':19 'we':28
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'synth pop', 'pop', 'rock']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628353852.2254324  (2021-08-07 18:30:52)
                             'size'  8498652