======================== unified (from filesystem) ========================
                                         'bitrate'  '223.27'
                                        'duration'  '285'
                                          'artist'  'Arpanet'
                                     'text_people'  ''
                                         'release'  'Inertial Frame'
                                           'title'  'Event Horizon (Edit)'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['electro', 'electronic', 'detroit electro', 'detroit', 'idm']"
                                     'discogstags'  "['electro', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '110.003'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Inertial Frame'
'TBPM' (BPM (beats per minute))                     '110.003'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Event Horizon (Edit)'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Arpanet'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electro', 'electronic']
'TXXX:lastfmtags'                                   ['electro', 'electronic', 'detroit electro', 'detroit', 'idm']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+3.64 dB'
'TXXX:replaygain_track_peak'                        '0.377030'

========================== row from database ==========================
                                              'id'  1421906
                                            'path'  /data/Music/Bulk/00poprockelectronic-waves-disco/00disco-italo/Arpanet/09 event horizon (edit).mp3
                                         'working'  None
                                         'bitrate'  223
                                    'duration_sec'  285
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  7977146
                                           'mtime'  1620607766
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic waves disco 00disco italo 09 event horizon (edit) electronic we disco italo
                                      'tag_artist'  Arpanet
                                     'tag_release'  Inertial Frame
                                       'tag_title'  Event Horizon (Edit)
                                             'bpm'  110.003
                                    'search_title'  'edit':3,4 'event':1 'horizon':2
                                   'search_artist'  'arpanet':1
                                  'search_release'  'frame':2 'inertial':1
                                     'search_rest'  '00disco':4 '00poprockelectronic':1 'disco':3 'edit':8,9 'electronic':10 'event':6 'horizon':7 'italo':5 'waves':2 'we':11
                                    'search_combo'  '00disco':11 '00poprockelectronic':8 'arpanet':5B 'disco':10 'edit':3A,4A,15,16 'electronic':17 'event':1A,13 'frame':7C 'horizon':2A,14 'inertial':6C 'italo':12 'waves':9 'we':18
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-other-1', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['electro', 'electronic', 'detroit electro', 'detroit', 'idm']
                                        'tag_date'  2006
                                     'discogstags'  ['electro', 'electronic']

============================== file details ==============================
                                           'mtime'  1620607765.6156871  (2021-05-10 02:49:25)
                             'size'  7977146