======================== unified (from filesystem) ========================
                                         'bitrate'  '187.608'
                                        'duration'  '193'
                                          'artist'  'The Rip Off Artist'
                                     'text_people'  ''
                                         'release'  'Blu Tribunl'
                                           'title'  'Guitar Trouble'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['microhouse', 'idm', 'electronic', 'glitch-hop', 'title is imperative']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '09'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-collage;set-pl-shirleyspinoza;set-pl-mor'
                                             'bpm'  '90.0'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Blu Tribunl'
'TBPM' (BPM (beats per minute))                     '90.0'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-experimental-collage', 'set-pl-shirleyspinoza', 'set-pl-mor']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Guitar Trouble'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Rip Off Artist'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '09'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['microhouse', 'idm', 'electronic', 'glitch-hop', 'title is imperative']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.65 dB'
'TXXX:replaygain_track_peak'                        '0.537168'

========================== row from database ==========================
                                              'id'  1376501
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Rip Off Artist - 2004 - Akufen／Freeform／The Rip-Off Artist - Blu TribunL (Inflatabl Labl) [vBr]/09 The Rip-Off Artist – Guitar Trouble.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  193
                                           'genre'  electronic-experimental-collage;set-pl-shirleyspinoza;set-pl-mor
                                        'filesize'  4544744
                                           'mtime'  1636920738
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 2004 Akufen／Freeform／The TribunL (Inflatabl Labl) [vBr] 09 – electronic experimental collage;set pl shirleyspinoza;set pl mor
                                      'tag_artist'  The Rip Off Artist
                                     'tag_release'  Blu Tribunl
                                       'tag_title'  Guitar Trouble
                                             'bpm'  90.0
                                    'search_title'  'guitar':1 'trouble':2
                                   'search_artist'  'artist':4 'off':3 'rip':2 'the':1
                                  'search_release'  'blu':1 'tribunl':2
                                     'search_rest'  '2004':1 'akufen':2,5 'akufenfreeformthe':8 'br':32,33 'collage':18,20 'electronic':16 'experimental':17 'freeform':3,6 'inflatabl':10,11 'l':29 'labl':12,13 'mor':27 'pl':22 'set':19,21,24,26 'shirleyspinoza':23,25 'the':4,7 'tribun':28 'tribunl':9 'v':30,31 'vbr':14,15
                                    'search_combo'  '2004':9 'akufen':10,13 'akufenfreeformthe':16 'artist':6B 'blu':7C 'br':40,41 'collage':26,28 'electronic':24 'experimental':25 'freeform':11,14 'guitar':1A 'inflatabl':18,19 'l':37 'labl':20,21 'mor':35 'off':5B 'pl':30 'rip':4B 'set':27,29,32,34 'shirleyspinoza':31,33 'the':3B,12,15 'tribun':36 'tribunl':8C,17 'trouble':2A 'v':38,39 'vbr':22,23
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['microhouse', 'idm', 'electronic', 'glitch-hop', 'title is imperative']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636920738.3603435  (2021-11-14 21:12:18)
                             'size'  4544744